| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | Plow structure. | US19396917 | 1917-09-29 | US1266753A | 1918-05-21 | ALTGELT RUDOLPH JOSEPH |
| 62 | Plow structure. | US19396817 | 1917-09-29 | US1266752A | 1918-05-21 | ALTGELT RUDOLPH JOSEPH |
| 63 | Spading-machine. | US13493716 | 1916-12-04 | US1238341A | 1917-08-28 | ROBINSON DAVID M |
| 64 | Weeder. | US8552116 | 1916-03-20 | US1210092A | 1916-12-26 | MCKAY ANDREW E |
| 65 | Digging-machine. | US1913785150 | 1913-08-16 | US1189935A | 1916-07-04 | GOBIET JULES |
| 66 | Spading-machine. | US3943115 | 1915-07-12 | US1182568A | 1916-05-09 | JAMESSON RAYNOLD D |
| 67 | Spading-machine. | US1912725707 | 1912-10-14 | US1062570A | 1913-05-20 | MOORE WALTER WIRT |
| 68 | Combined soil-pulverizer and cultivator. | US1911646126 | 1911-08-26 | US1023774A | 1912-04-16 | WILLIAMS WILLIAM A |
| 69 | Cultivator. | US1909500898 | 1909-06-08 | US976644A | 1910-11-22 | ECKROAT FRANKLIN P; ECKROAT PETER F |
| 70 | Cultivator. | US1909500897 | 1909-06-08 | US976643A | 1910-11-22 | ECKROAT FRANKLIN P; ECKROAT PETER F |
| 71 | Cultivator. | US1907369094 | 1907-04-19 | US923163A | 1909-06-01 | GASTON WALLACE D |
| 72 | Power-cultivator. | US877988D | US877988A | 1908-02-04 | EDWARDS CHARLES | |
| 73 | Harrow. | US1906307547 | 1906-03-22 | US853523A | 1907-05-14 | STARK SUMMERFIELD B |
| 74 | Weeding-machine. | US1903162118 | 1903-06-18 | US756125A | 1904-03-29 | LLOYD WILLIAM DANIEL |
| 75 | Land-cultivator. | US1899712949 | 1899-04-13 | US641619A | 1900-01-16 | ANDERSON JOHN E |
| 76 | Subsoil-plow | US570192D | US570192A | 1896-10-27 | ||
| 77 | Stalk and weed chopper | US557372D | US557372A | 1896-03-31 | ||
| 78 | Cotton chopper and cultivator | US284389D | US284389A | 1883-09-04 | ||
| 79 | Machine | US276783D | US276783A | 1883-05-01 | ||
| 80 | stone | US265345D | US265345A | 1882-10-03 | ||
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