专利检索_ 耢除草耕耘机的平地机专利检索_ 耢除草耕耘机的平地机专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
281	Control system for finish levelers	US48774155	1955-02-14	US2846792A	1958-08-12	HOBDAY HAROLD W

282	Earth leveler and draft connection therefor	US38510253	1953-10-09	US2817203A	1957-12-24	SIEVERS ALBERT H; SIEVERS CARL J; ELMER SIEVERS

283	Land leveler	US36278153	1953-06-19	US2795060A	1957-06-11	MARTIN GEISZLER

284	Finish leveler	US43613054	1954-06-11	US2792651A	1957-05-21	HOBDAY HAROLD W

285	Means for raising tractor drawn implements	US17513150	1950-07-21	US2723129A	1955-11-08	SPRAGUE FRANK N

286	Golf green drag	US30244052	1952-08-02	US2718730A	1955-09-27	PIERRE BRAZEAU

287	Combination trailer, harrow, and grader farm tool	US11646149	1949-09-19	US2690635A	1954-10-05	GARZA JOSEPH L

288	Scraper attachment for tractors	US17139650	1950-06-30	US2614345A	1952-10-21	LAY ANDY R

289	Brush drag	US5839248	1948-11-05	US2558324A	1951-06-26	LESTOR SWEAT; THERON CHATWIN; KENNETH SWEAT

290	Land leveler	US62822745	1945-11-13	US2444977A	1948-07-13	CLARK MARION A

291	Land leveler	US66166046	1946-04-12	US2428857A	1947-10-14	SMITH FRED T

292	Automatic land leveler	US39256741	1941-05-08	US2283744A	1942-05-19	LETHLEAN WILLIAM F

293	Land leveling machine	US35646440	1940-09-12	US2277889A	1942-03-31	SHUMAKER LAWRENCE E

294	Land leveler	US32391340	1940-03-14	US2269519A	1942-01-13	CHRISTENSON GEORGE A

295	Land leveling machine	US38370841	1941-03-17	US2254414A	1941-09-02	ROBERT BOWLIN

296	Ground working trailer	US24900439	1939-01-03	US2207424A	1940-07-09	WOOD GEORGE B

297	Terracing device	US9285336	1936-07-27	US2125134A	1938-07-26	THOMPSON ROBERT C

298	Land vehicle	US44920630	1930-05-02	US1986146A	1935-01-01	GUSTAFSON CARL A

299	Draft connection for implements	US68781233	1933-09-01	US1983860A	1934-12-11

300	Land vehicle	US48514230	1930-09-29	US1962536A	1934-06-12	THOEN LOWELL H

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