| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Plow | US19862717 | 1917-10-26 | US1335195A | 1920-03-30 | RHOMBERG JOSEPH H |
| 82 | Plow. | US23051718 | 1918-04-24 | US1297377A | 1919-03-18 | MCGIRR PATRICK A |
| 83 | Plow attachment. | US7230016 | 1916-01-15 | US1263690A | 1918-04-23 | MAKER ELMER A |
| 84 | Road-grader. | US15014617 | 1917-02-21 | US1228979A | 1917-06-05 | SMITH EDWARD W |
| 85 | Trail-grader. | US1914819510 | 1914-02-18 | US1132487A | 1915-03-16 | PHILLIPS ARTHUR W |
| 86 | Automatic guiding device for harrows. | US1913745295 | 1913-01-30 | US1109076A | 1914-09-01 | LEAL JESSE G |
| 87 | Pulverizer. | US1913774392 | 1913-06-18 | US1095911A | 1914-05-05 | MIRE JOSEPH C |
| 88 | Harrow attachment for plows. | US1913748718 | 1913-02-15 | US1071551A | 1913-08-26 | DEMPSEY JESSE F |
| 89 | Plow attachment-jointer. | US1911631504 | 1911-06-06 | US1004803A | 1911-10-03 | MCDANIEL ELZA |
| 90 | Agricultural implement. | US1910585644 | 1910-10-06 | US992543A | 1911-05-16 | COATES ROBERT |
| 91 | Harrow attachment for plows. | US1910560961 | 1910-05-12 | US968072A | 1910-08-23 | OGLE HERMAN |
| 92 | Pulverizing-plow. | US1909474884 | 1909-01-28 | US935732A | 1909-10-05 | BEDEE FREEBORN |
| 93 | Plow attachment. | US1908447804 | 1908-08-10 | US930266A | 1909-08-03 | CHRISTIANSON CHRISTIAN |
| 94 | Harrow attachment. | US1906335301 | 1906-09-19 | US856916A | 1907-06-11 | SCHAAL KARL |
| 95 | Plow attachment. | US1906341157 | 1906-10-29 | US850717A | 1907-04-16 | ARTER ALPHEUS |
| 96 | Harrow attachment for plows. | US1905250334 | 1905-03-16 | US790751A | 1905-05-23 | RICHARDS RICHARD H |
| 97 | Harrow attachment. | US1904228604 | 1904-10-15 | US785864A | 1905-03-28 | DAVIS JUSTUS A |
| 98 | Plow. | US1899710343 | 1899-03-24 | US637973A | 1899-11-28 | PUTNAM EMMET P; MAXFIELD ADOLPHUS F |
| 99 | Edson carr robinson | US615908D | US615908A | 1898-12-13 | ||
| 100 | z brown | US612818D | US612818A | 1898-10-25 | ||
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