专利检索_ 提升和处理土壤的机械专利检索_ 提升和处理土壤的机械专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
221	Soil screen for plows	US74724624	1924-11-01	US1590035A	1926-06-22	JOHN KEMP

222	Quack-grass destroyer	US58812822	1922-09-14	US1579406A	1926-04-06	ALEXANDER SKENE

223	Weed gatherer for plows	US5234825	1925-08-25	US1573592A	1926-02-16	JOHN WICKER; MCGOUGH JOSEPH E

224	Quack-grass machine	US60642522	1922-12-12	US1533274A	1925-04-14	REYNOLDS THOMAS C

225	Grass separator	US47981821	1921-06-23	US1511090A	1924-10-07	ALBERT OLMSTED

226	Soil pulverizer and seeder	US21596818	1918-02-08	US1500437A	1924-07-08	BURTON CHARLES S

227	Quack-grass digger	US36226020	1920-03-01	US1470393A	1923-10-09	CHRIST SIEVERT

228	Grass and thistle digger	US39754120	1920-07-19	US1430583A	1922-10-03	HENRY POHL ALBERT

229	Plow	US31297319	1919-07-24	US1417643A	1922-05-30	TRUSSELL WILBERT L

230	Sod-disintegrator and quack-grass eradicator	US25695918	1918-10-05	US1341861A	1920-06-01	AXEL NEWDALL; NELSON NELS P; MAGNUS NEWDALL

231	Quack-grass destroyer	US25162318	1918-08-27	US1328697A	1920-01-20	STREY WALTER F A

232	A common law	US1320469D		US1320469A	1919-11-04

233	Qttack-grass rooter	US1314122D		US1314122A	1919-08-26

234	Combined earth-disintegrating and weeding machine.	US16883017	1917-05-15	US1245252A	1917-11-06	MCGREGOR VIRGIL L

235	Scarifier.	US14363517	1917-01-22	US1237186A	1917-08-14	FARMER CORNELIUS D

236	Harvester.	US1914836265	1914-05-04	US1178634A	1916-04-11	DREWES HENRY FREDERICK WILLIAM

237	Machine for gathering stones.	US1913788142	1913-09-04	US1106190A	1914-08-04	CONINE JAMES B

238	Quack-grass-destroying machine.	US1910582905	1910-09-20	US1002276A	1911-09-05	JOHNSON JOHN S

239	Quack-grass destroyer.	US1909531841	1909-12-07	US968684A	1910-08-30	PAULSON JOHN A

240	Attachment for potato-diggers.	US1908455397	1908-09-30	US920919A	1909-05-11	COOPER WILLIAM

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