专利检索_ 带专用附属装置的犁例如带土下施肥工具碎土块机的专利检索_ 带专用附属装置的犁例如带土下施肥工具碎土块机的专利检索查询

子分类：

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
321	Hot plow	US61832523	1923-02-10	US1927177A	1933-09-19	LEDBETTER WILLIAM H

322	Subsoiling attachment for plows	US53120831	1931-04-18	US1867977A	1932-07-19	KRANZ JR WILLIAM

323	Mold board	US55320731	1931-07-25	US1851862A	1932-03-29	NELSON ABE C

324	Stalk cutter	US46047730	1930-06-11	US1801116A	1931-04-14	JOHN SETZER

325	Subsoil attachment for plows	US43368030	1930-03-06	US1800899A	1931-04-14	JOHN NICHOLS

326	Plow	US30135228	1928-08-22	US1777186A	1930-09-30	HELMUTH THURKOW

327	Stalk breaker	US17862827	1927-03-26	US1680218A	1928-08-07	KEUNE WILLIAM H

328	Tractor plow	US11233026	1926-05-28	US1633205A	1927-06-21	BRUNER MARTIN R

329	Swivel plow with subsoil loosener	US11297226	1926-06-01	US1615656A	1927-01-25	JOSEF SCHMIDT

330	Wing-sweep attachment for plows	US71695324	1924-05-31	US1532556A	1925-04-07	SKINNER M T

331	Plow attachment	US70474724	1924-04-07	US1519161A	1924-12-16	NELSON OLAUS N; STRANDQUIST WILHELM E

332	Stubble cutter	US31497919	1919-08-02	US1436792A	1922-11-28	CHILDRESS EMMITT C

333	Subsoiler attachment for plows	US30456519	1919-06-16	US1427305A	1922-08-29	PLEASANT LITTLE JOSEPH

334	Plow	US33222019	1919-10-21	US1388233A	1921-08-23	LARRALDE FRANCISCO ANORGA Y

335	Machine for eradicating quack-grass	US35535120	1920-01-31	US1380635A	1921-06-07	EDWARD CLARK WILLIAM

336	Cultivator attachment	US26355718	1918-11-21	US1369970A	1921-03-01	FULLER ORIE E

337	Operating mechanism for farm machinery	US15678917	1917-03-22	US1369431A	1921-02-22	HICKS THOMAS W

338	Agricultural implement	US37790620	1920-04-30	US1348255A	1920-08-03	JOHN VERSTEEG

339	Fender-pulverizer for plows	US31882619	1919-08-20	US1330686A	1920-02-10	RAY COFFMAN

340	Farming implement.	US21876718	1918-02-23	US1287374A	1918-12-10	MCHAM JOHN WARREN

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