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公开(公告)号:US1644885A
公开(公告)日:1927-10-11
申请号:US42253520
申请日:1920-11-08
Applicant: CLEVELAND TRACTOR CO
Inventor: DOUGLAS JONES GEORGE
IPC: A01B35/12
CPC classification number: A01B35/12
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公开(公告)号:US1869376A
公开(公告)日:1932-08-02
申请号:US35242829
申请日:1929-04-04
Applicant: CLEVELAND TRACTOR CO
Inventor: DOUGLAS JONES GEORGE
IPC: A01B63/16
CPC classification number: A01B63/166
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公开(公告)号:US2337110A
公开(公告)日:1943-12-21
申请号:US43207842
申请日:1942-02-23
Applicant: CLEVELAND TRACTOR CO
Inventor: DOUGLAS JONES GEORGE , FISHER EDWARD D
IPC: A01B35/12
CPC classification number: A01B35/12
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公开(公告)号:US1827237A
公开(公告)日:1931-10-13
申请号:US24305327
申请日:1927-12-28
Applicant: CLEVELAND TRACTOR CO
Inventor: DOUGLAS JONES GEORGE
IPC: B62D49/06
CPC classification number: B62D49/065
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公开(公告)号:US1682727A
公开(公告)日:1928-08-28
申请号:US44978721
申请日:1921-03-05
Applicant: CLEVELAND TRACTOR CO
Inventor: DOUGLAS JONES GEORGE
IPC: B62D49/06
CPC classification number: B62D49/065 , Y10S180/90
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