| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 201 | Method and apparatus for flattening wood based panels | US726901 | 1976-09-27 | US4139407A | 1979-02-13 | Roland Etzold |
| This invention relates to a method and an apparatus for flattening wood based panels such as plywood, flake board or fiber board panels, which have an undesirable curvature, due to an imbalanced construction, or due to a certain production process. In particular this invention relates to the flattening of a panel as described in U.S. Pat. No. 3,878,017. | ||||||
| 202 | Preparation of wood for bending | US16936762 | 1962-01-29 | US3132674A | 1964-05-12 | NORMAN TURNER |
| 203 | Wood bending machinery | US56158444 | 1944-11-02 | US2551383A | 1951-05-01 | KARL MICHAELIS |
| 204 | Panel bend | US25665439 | 1939-02-16 | US2253219A | 1941-08-19 | ALEXANDER ELMO E |
| 205 | Machine for bending wood sheets | US21479D | USRE21479E | 1940-06-04 | ||
| 206 | Bending of wood | US16803537 | 1937-10-08 | US2189078A | 1940-02-06 | KARL MICHAELIS |
| 207 | Barrel manufacture | US7322936 | 1936-04-08 | US2187804A | 1940-01-23 | HOYT HAZEN L |
| 208 | Machine for bending wood sheets | US15199137 | 1937-07-06 | US2167428A | 1939-07-25 | TRABUCCO VINCENT R |
| 209 | Method of making handles | US9340236 | 1936-07-30 | US2076764A | 1937-04-13 | COWDERY WARREN K |
| 210 | Machine for making rings | US60303932 | 1932-04-04 | US1933834A | 1933-11-07 | MICHAEL WIMER |
| 211 | Process of bending wood | US49292630 | 1930-11-03 | US1906392A | 1933-05-02 | MCLEOD HARRY S |
| 212 | Roll structure for dry-wood-bending machines | US30466928 | 1928-09-08 | US1792597A | 1931-02-17 | LIVINGSTON TROY R |
| 213 | Machine for bending wood | US68780824 | 1924-01-22 | US1569935A | 1926-01-19 | LORENZO JOHNSON |
| 214 | Method of and mechanism for forming split d handles | US69528324 | 1924-02-26 | US1521988A | 1925-01-06 | BENTON GEORGE W |
| 215 | Wood-bending device | US49267721 | 1921-08-16 | US1421186A | 1922-06-27 | CYRIL DUFF |
| 216 | Cue-straightener. | US12149616 | 1916-09-21 | US1220199A | 1917-03-27 | CRANE JOHN M |
| 217 | Hoop-forming machine. | US5773515 | 1915-10-25 | US1183495A | 1916-05-16 | RICHARDSON RICHARD |
| 218 | Means for holding wooden articles while being shaped. | US1913793584 | 1913-10-06 | US1148899A | 1915-08-03 | HEWITT HORACE B |
| 219 | Veneer-barrel-making machine. | US1911601200 | 1911-01-06 | US1022970A | 1912-04-09 | OTT WILLARD J |
| 220 | Barrel-making machine. | US1910539828 | 1910-01-24 | US1001766A | 1911-08-29 | MAYER GEORGE J |
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