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 Weed clearing device for plows US38604253 1953-10-14 US2829579A 1958-04-08 KREHBIEL DANIEL E
202 bauer US2733647D US2733647A 1956-02-07
203 Jointer device for plow US44528754 1954-07-23 US2712784A 1955-07-12 BAUER DONALD J
204 Spreader disk mounting for colter blades US1578448 1948-03-19 US2601019A 1952-06-17 ETHEL BUSSE
205 Plowing mechanism US56861744 1944-12-18 US2440174A 1948-04-20 MICHAEL HOWARD
206 Farming implement US53239144 1944-04-24 US2391910A 1946-01-01 LUTES OAKLEY D
207 Plow for trash covering US34816640 1940-07-29 US2299381A 1942-10-20 COLLINS EDGAR V
208 Farming implement US27721139 1939-06-03 US2230750A 1941-02-04 HOLLANDSWORTH GEORGE W
209 Attachment for plows US13778126 1926-09-25 US1733046A 1929-10-22 BARTLOW LOWELL W
210 Plow attachment US23526527 1927-11-23 US1730107A 1929-10-01 WORK ALVIN E
211 Attachment for plows US27132228 1928-04-19 US1727154A 1929-09-03 ANDERSON BURT J
212 Attachment for plows US1669825 1925-03-19 US1593126A 1926-07-20 JOHNS ANDREW J
213 Long-sweep attachment for cultivators US73529724 1924-09-02 US1543115A 1925-06-23 LONG JOSEPH B
214 Attachment for plows US48356221 1921-07-09 US1433614A 1922-10-31 HAYES BURRIS E
215 Rolling colter and jointer. US12978816 1916-11-06 US1273898A 1918-07-30 MELVIN CHARLES H; SEAHOLM JOHN P
216 Sugar-cane cultivator. US9408816 1916-04-28 US1260746A 1918-03-26 BERNSON CHARLES WILLIAM
217 Rolling colter and jointer attachment for plows. US13820116 1916-12-21 US1250371A 1917-12-18 SIDELL PHILIP S
218 Colter and jointer attachment for plows. US567215 1915-02-02 US1207166A 1916-12-05 HEYLMAN EDWARD M
219 Root-cutting plow. US1914877387 1914-12-15 US1149102A 1915-08-03 WEBSTER ALVAH D
220 Weed and stalk turning attachment for plows. US1912713376 1912-08-05 US1101717A 1914-06-30 SHEPHERD JAMES MELTON
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