| 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 | Manure-loader. | US5650215 | 1915-10-18 | US1190550A | 1916-07-11 | HOSSFELD ALBERT |
| 22 | mercer | US425139D | US425139A | 1890-04-08 | ||
| 23 | Hay-loader | US337811D | US337811A | 1886-03-16 | ||
| 24 | Set onion planting machine | US18052950 | 1950-08-21 | US2674962A | 1954-04-13 | BOGOIA STREZOFF |
| 25 | Planter | US51057643 | 1943-11-17 | US2403376A | 1946-07-02 | KAUPKE LEE H; SMITH LEWIS E |
| 26 | Seed-potato cutter and planter | US19756327 | 1927-06-09 | US1751574A | 1930-03-25 | BRAATEN EDWARD O; HARMER OTTO R |
| 27 | Potato planter | US18935727 | 1927-05-06 | US1748090A | 1930-02-25 | STANISLAW STYKA |
| 28 | Potato-planter attachment for corn planters | US62116223 | 1923-02-26 | US1506294A | 1924-08-26 | NICK FABER |
| 29 | Potato-seed planter | US25485818 | 1918-09-16 | US1327971A | 1920-01-13 | TOWNE WILLIAM R |
| 30 | Device for feeding rags and the like. | US15107717 | 1917-02-26 | US1300840A | 1919-04-15 | JACOBS JULIAN S |
| 31 | Elevator. | US16381917 | 1917-04-23 | US1240552A | 1917-09-18 | FISHER HARRY P |
| 32 | Carrier for sheaf-hoists. | US10021516 | 1916-05-27 | US1203514A | 1916-10-31 | FETROW WILLIAM G; EBERLY EDGAR |
| 33 | Elevator. | US1911636371 | 1911-07-01 | US1023626A | 1912-04-16 | CRICHTON WILLIAM A |
| 34 | Seed-dropper. | US1907397992 | 1907-10-18 | US883563A | 1908-03-31 | PARRISH WASHINGTON B |
| 35 | Conveyer-chain | US462417D | US462417A | 1891-11-03 | ||
| 36 | Elevator | US414712D | US414712A | 1889-11-12 | ||
| 37 | Picker assembly for potato planter | US10704769 | 2003-11-10 | US06901869B1 | 2005-06-07 | Patrick M. Cronin |
| A pick assembly for picking potatoes from a supply in a potato planter and moving them to a discharge position includes an arm that supports a plurality of picks that will engage the potatoes. The arm is mounted on a rotating wheel, and the picks are held in the arm with gently tapered bores in the arm and mating gently tapered conical surfaces on the pick that seat together when the pick is installed in the arm. The picks are maintained under axial compression loads to force the mating tapered surfaces together during use. | ||||||
| 38 | Article pick-up and delivery apparatus | US26050163 | 1963-02-25 | US3200936A | 1965-08-17 | BRIGGS MERLE A |
| 39 | Potato planting machine | US10039849 | 1949-06-21 | US2617557A | 1952-11-11 | THEODORUS SMITS CHRISTIANUS |
| 40 | Potato planter | US38604441 | 1941-03-31 | US2342122A | 1944-02-22 | COOK CURTISS L |
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