子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Mobile desk apparatus | US383598 | 1989-07-24 | US4936050A | 1990-06-26 | Peter K. Lundgren |
| A mobile desk apparatus is set forth for use in inclement environmental conditions including horizontal legs spaced at one hundred twenty degrees relative to one another integrally and orthogonally secured to a central telescoping mass structure. An internal tube of the mast structure is fixedly mounted relative to an external tube by use of a friction lock directed through the external tube to impose upon an exterior surface of the internal tube. The desk portion includes a plurality of spaced "L" shaped brackets positioned on either side of the internal tube with arcuate slots directed therethrough to enable angular orientation of the desk relative to the mast structure. A transparent, polymeric cover is pivotally mounted to overlie the desk structure with a rear flange hingedly mounted adjacent a rear bottom edge of the desk and removably relative to the desk to present a selective writing surface or its removal enabling convenient access to interior contents of the desk. | ||||||
| 122 | Book holding device | US398986 | 1982-07-16 | US4436271A | 1984-03-13 | Hipolito S. Manso |
| This device is for holding a book open to a desired page, while leaving the user's hands free. Primarily, it consists of a base, having a hinged rod assembly secured to it. The assembly includes a pair of plastic sleeves with an adjustable and elevatable upper hook arrangement, for holding a book open, and the hinged rod assembly further includes an adjustable lower hook arrangement for holding the lower portions of the pages open. | ||||||
| 123 | Book holder | US338421 | 1982-01-11 | US4407523A | 1983-10-04 | A. Peter Campione |
| This device consists primarily of an upright backing member, called a backrest, having a perpendicular lip extending out from its base in a forward direction, and located at the inside bend of said perpendicular lip and backrest, is a spacer upon which an open book's weight is supported at its lower edges while its covers lean against said backrest. Along the lower margins and covering the entire width of the book's open pages, is held a flat rectangular plate of transparent material, which is simultaneously exerting a pressing force in a rearward direction against the open pages, this force is generated by means of elastic cords located at both the right and left ends of the flat plate, said cords are threaded through holes in the flat plate and bypass the book's page edges, then passing through similar holes in the backrest, they are terminated and held securely in the rear of backrest by means of knots in the cord ends, the knotting effect being enhanced by means of flat washers surrounding the finished knots. The backrest and its associated parts as an assembly is supported on a flat table or surface in a rearwardly inclined vertical position by means of a rear supporting plate projecting horizontally rearward in a direction perpendicular to the backrest, and is attached to the backside of the backrest by means of two bolts and wing nuts. | ||||||
| 124 | Magnifier viewer and stand | US243838 | 1981-03-16 | US4379618A | 1983-04-12 | Marion A. Tall |
| A magnifier viewer and stand for holding and viewing printed material and the like has a one piece base for holding the material to be viewed and a wide area magnifying lens and support adjustably positioned on the base. | ||||||
| 125 | Book support | US873811 | 1978-01-31 | US4239171A | 1980-12-16 | Edward Huls; Christina Huls |
| A holder for an open book formed of a single piece of transparent plastic shaped to hold the book in a more or less vertical position, incorporating a spring clip on the back. A pole is attached to the holder. The bottom of the pole is shaped for ready insertion into the ground, and also designed to mount a plurality of legs attached by joints or pegs and a deformable ring. The book holder can be used without legs on a soft surface (e.g., a beach) or with legs on a hard surface. | ||||||
| 126 | Table for use in religious services | US921898 | 1978-07-05 | US4190303A | 1980-02-26 | Juanita W. Ellis |
| A table having a broad, multi-sided top forming a regular octagon supported by a column mounted on a broad base at a height above the floor convenient for kneeling therearound is disclosed. A rotatable lectern is mounted on the table top so that the same can be aligned for use by a person kneeling at any one of the eight sides. The table top may be constructed to form a stationary central portion with four drop leafs attached to the central portion as a space saving feature. | ||||||
| 127 | Pedestal stand column assembly | US51254674 | 1974-10-07 | US3917368A | 1975-11-04 | GUSDORF WALTER; SMITH WALTER E |
| A mobile pedestal cart having a column formed from a flat sheet bent into a tubular shape with an open side, a panel slidably mounted in the open side to complete the column and present a surface for decorative or contrast appearance, and means to permit assembly of the components by the purchaser whereby the cart may be transported in a knock down condition to conserve package size.
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| 128 | Collapsible voting compartments | US3550540D | 1968-07-25 | US3550540A | 1970-12-29 | ALBRECHT LEONARD N; HARRIS JOSEPH P |
| 129 | Shopping cart attachment | US45255665 | 1965-05-03 | US3251543A | 1966-05-17 | BUSH FRED L; ALLEN RYAN PAUL |
| 130 | Convertible desk for language teaching and the like | US21457362 | 1962-08-03 | US3211506A | 1965-10-12 | LEVY RICHARD S; GREENBERG ALFRED A |
| 131 | Foldable leg construction | US8972461 | 1961-02-16 | US3061391A | 1962-10-30 | HARTMAN LYLE M |
| 132 | Dictionary stand | US1906360 | 1960-03-31 | US3016650A | 1962-01-16 | MAGERS LLOYD E |
| 133 | Support for reading matter | US348248 | 1948-01-21 | US2807369A | 1957-09-24 | DOROTHY STARK |
| 134 | Adjustable and foldable desk and drawing board | US78646747 | 1947-11-17 | US2555575A | 1951-06-05 | CRAYTON THOMAS B |
| 135 | Hanger for books | US56343844 | 1944-11-14 | US2395749A | 1946-02-26 | MILLER ANDREW J |
| 136 | Collapsible supporting stand | US36790040 | 1940-11-30 | US2303978A | 1942-12-01 | BIBERMAN LOUIS S |
| 137 | Desk ledge | US24410838 | 1938-12-05 | US2176178A | 1939-10-17 | HERFORT HERMAN J |
| 138 | Stamp display and vending device | US74949434 | 1934-10-22 | US2044141A | 1936-06-16 | WILLIAMS ROY R |
| 139 | Reading appliance | US22068827 | 1927-09-20 | US1733107A | 1929-10-29 | ALFRED AHLBERG |
| 140 | Rainy-day-tablet shield | US9399326 | 1926-03-11 | US1642384A | 1927-09-13 | PRYOR WILLIAM A |
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