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	公开（公告）号	公开（公告）日
261	miles	US91957D	US91957A	1869-06-29

262	Improvement in flows	US91328D	US91328A	1869-06-15

263	Improvement in plows	US83768D	US83768A	1868-11-03

264	sutherlen	US76848D	US76848A	1868-04-14

265	Campbell n	US75832D	US75832A	1868-03-24

266	dbybreaux	US66809D	US66809A	1867-07-16

267	Improvement in ploughs	US66109D	US66109A	1867-06-25

268	rogers	US65834D	US65834A	1867-06-18

269	Gibbs	US64213D	US64213A	1867-04-30

270	Sylvania	US63838D	US63838A	1867-04-16

271	Jacob kbsslbk	US61622D	US61622A	1867-01-29

272	miles	US61083D	US61083A	1867-01-08

273	Improvement in plows	US42838D	US42838A	1864-05-24

274	Improvement in cultivators	US35223D	US35223A	1862-05-13

275	Improvement in plows	US29741D	US29741A	1860-08-21

276	Improvement in gang-plows	US29027D	US29027A	1860-07-03

277	Improvement in apparatus for clearing the colters of plows	US20300D	US20300A	1858-05-18

278	Improvement in gang-plows	US18698D	US18698A	1857-11-24

279	bills	US15919D	US15919A	1856-10-21

280	Improvement in plows	US11935D	US11935A	1854-11-14

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