| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Portable viewing stand | US463402 | 1990-01-11 | US4991812A | 1991-02-12 | Neil MacEwan |
| This invention relates to a portable, collapsible stand for supporting materials such as books, sheet materials and the like in a convenient position to be viewed by an individual. | ||||||
| 22 | Folding standup desk | US174411 | 1988-03-28 | US4865403A | 1989-09-12 | Helmut Steinhilber |
| In order to be able to retrofit an existing writing desk in simple fashion with a standup desk that can be folded and slid beneath the working surface of the writing desk, the standup desk has a frame on which the guides for sliding the standup desk are provided. This frame can be placed as a free-standing bracket beneath the writing desk or tensioned between the pedestals of the writing desk or between the floor and the working surface. | ||||||
| 23 | Portable desk | US567667 | 1984-01-03 | US4531642A | 1985-07-30 | John J. Racich |
| The invention described herein is a portable desk board having upper and lower portions and two longitudinally spaced, flat-top working areas, with a receptacle for writing instruments and the like separating the working areas longitudinally. An elongated bookrest is arranged in the lower portion of the desk, and a pivot is provided for mounting the bookrest to the desk. The outer end of the bookrest may be selectively anchored in one of two positions on the desk board. The desk board includes a clamp along its upper portion to overlie each of the spaced working areas for clamping paper or the like in place over the respective working area, and a hand grip carrier is provided in the central upper portion of the desk board. A stand is provided for the desk board operable between open and closed positions and comprising a pair of arms with a flexible strap extending therebetween to provide a support for the desk when the stand is open and a carrier for the desk board when the stand is closed. A specially shaped board margin is provided for contact with the flexible strap to lock the strap against the board when the desk stand is not needed and to also provide a hand grip for carrying the board. An alternative form of the invention is also disclosed, having a differently constructed arm means on the desk stand, as well as other differences in construction. | ||||||
| 24 | Foldable stand | US397535 | 1982-07-12 | US4483505A | 1984-11-20 | Emil J. Dalbo |
| A foldable stand for holding a card or the like for easy viewing. The stand includes a base and a supporting member pivotal with respect to each other. A pivot body carries the pivot pin, and carries a stop pin that extends into the vertex between the base and the supporting member as the members are rotated in opposite directions. The pivot body also carries a trough that is aligned to carry the card or the like when the stop pin is in position to limit the rotation of the base and supporting members. | ||||||
| 25 | Portable podium | US507393 | 1974-09-19 | US3936109A | 1976-02-03 | Josephine M. Richardson |
| A compact podium structure which is readily portable and which can also be supported at adjustable heights. The podium has a box-like upper part with an inclined, hinged upper wall, or lid, and includes a pedestal which is adjustable in length and which can be detachably connected to the botton of the upper part in about the center. The hinged lid of the upper part permits storage inside the podium upper part of the pedestal structure, as well as the speaker's notes, and the like. A lamp is provided which is detachably and adjustably connected to the top wall of the upper part, and this item can also be stored inside the upper part for transport. Still further, the hinged top wall of the upper part of the podium may include holes therethrough in one region and within the upper part of the podium a tape recorder can be provided for being supported beneath the holes in the top wall if so desired. The tape recorder, also, can be accommodated within the upper part of the podium. | ||||||
| 26 | Musician's folding stand | US26713063 | 1963-03-22 | US3134192A | 1964-05-26 | HUFFER ROBERT L |
| 27 | Portable lectern | US1203660 | 1960-03-01 | US3056230A | 1962-10-02 | BROKAW JR ROBERTS WYCKOFF |
| 28 | Foldable wire book study device | US81239959 | 1959-05-11 | US2971286A | 1961-02-14 | ERNST WILLIAM B |
| 29 | Portable lectern or the like | US46966454 | 1954-11-18 | US2844347A | 1958-07-22 | HENRY GLENN C |
| 30 | Portable lectern | US52500255 | 1955-07-28 | US2820686A | 1958-01-21 | SNYDER ROLLAND S |
| 31 | Typewriter and dictionary, etc., stand | US43374054 | 1954-06-01 | US2817486A | 1957-12-24 | HANS SKREBERG |
| 32 | Music stand utility case | US8851749 | 1949-04-20 | US2597970A | 1952-05-27 | BOLLETTIERI PATRICK J |
| 33 | Collapsible music stand | US76881347 | 1947-08-15 | US2507620A | 1950-05-16 | VAL BARBARA FRANK C |
| 34 | Folding bookrest | US46063942 | 1942-10-03 | US2373617A | 1945-04-10 | TIRYAKIAN JOHN HAIG H |
| 35 | Collapsible music display stand | US40397541 | 1941-07-25 | US2309876A | 1943-02-02 | TODD GIBBON H |
| 36 | Music stand | US32804240 | 1940-04-05 | US2235989A | 1941-03-25 | GRUETZMACHER HERALD A; MENTER ERNEST E |
| 37 | Desk stand | US22720438 | 1938-08-27 | US2152557A | 1939-03-28 | MOORE ERNEST C; RAY CHALLONER WILLIS |
| 38 | Folding desk | US26787328 | 1928-04-06 | US1787363A | 1930-12-30 | FAHNESTOCK WILLIAM B |
| 39 | Book holder and reading case | US9865326 | 1926-03-31 | US1721558A | 1929-07-23 | HENDRICKSON FRANK G |
| 40 | Core reenforcement of music rolls | US41821920 | 1920-10-20 | US1407784A | 1922-02-28 | CLARK ERNEST G |
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