| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Potato and bean planter | US43233342 | 1942-02-25 | US2340240A | 1944-01-25 | THOMAS WHITE |
| 42 | Potato planter | US33004240 | 1940-04-17 | US2338034A | 1943-12-28 | GEMBERLING CAMERON H; ALTGELT RUDOLPH J |
| 43 | Picker arm for potato planters | US2503035 | 1935-06-05 | US2083713A | 1937-06-15 | JOHNSON ARNOLD E W; MITCHELL JOSEPH I |
| 44 | Picker arm for potato planters | US2504235 | 1935-06-05 | US2062578A | 1936-12-01 | KAUPKE LEE H |
| 45 | Potato planter | US74017034 | 1934-08-16 | US2031547A | 1936-02-18 | JOHN REUTHER |
| 46 | Potato planter | US60463232 | 1932-04-11 | US1963036A | 1934-06-12 | ISAAC TROLLEY |
| 47 | Potato planter | US12523526 | 1926-07-27 | US1828274A | 1931-10-20 | AUGUSTUS ASPINWALL LEWIS |
| 48 | Bulb dropper | US1738218D | US1738218A | 1929-12-03 | ||
| 49 | Potato-planting machine | US74133924 | 1924-10-03 | US1539552A | 1925-05-26 | CHARLES FARMER |
| 50 | Potato planter | US42495220 | 1920-11-18 | US1448468A | 1923-03-13 | SPROULL GEORGE F |
| 51 | Dispensing mechanism for potato planters | US34175519 | 1919-12-01 | US1410843A | 1922-03-28 | SPERRY HERBERT B |
| 52 | Planter | US30117419 | 1919-06-02 | US1336124A | 1920-04-06 | BARRETT WILLIAM W |
| 53 | Potato-picker mechanism for potato-planters | US1312984D | US1312984A | 1919-08-12 | ||
| 54 | Feeding device for hay-baling presses. | US13336616 | 1916-11-25 | US1257510A | 1918-02-26 | MASON HENRY A |
| 55 | Conveyer. | US1913777339 | 1913-07-03 | US1085538A | 1914-01-27 | BURGESS ARTHUR; REHFUSS JOHN G; REHFUSS MARTIN O |
| 56 | Lumber-stacker. | US1910547580 | 1910-03-05 | US978565A | 1910-12-13 | DENISON CHARLES ALBERT |
| 57 | Potato-planter | US541458D | US541458A | 1895-06-25 | ||
| 58 | Elevator for harvesters | US410527D | US410527A | 1889-09-03 | ||
| 59 | Potato-planter | US368495D | US368495A | 1887-08-16 | ||
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