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公开(公告)号:US2645988A
公开(公告)日:1953-07-21
申请号:US65079346
申请日:1946-02-28
Applicant: CASE CO J I
Inventor: RAUGHT ARTHUR V
IPC: A01B37/00
CPC classification number: A01B37/00 , Y10T403/7141
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公开(公告)号:US2625869A
公开(公告)日:1953-01-20
申请号:US8381849
申请日:1949-03-28
Applicant: ALLIS CHALMERS MFG CO
Inventor: BUHR AUGUST G
IPC: A01B37/00
CPC classification number: A01B37/00
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公开(公告)号:US1886438A
公开(公告)日:1932-11-08
申请号:US51905731
申请日:1931-02-28
Applicant: MELVILLE WEEKS GEORGE
Inventor: MELVILLE WEEKS GEORGE
IPC: A01B37/00
CPC classification number: A01B37/00
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公开(公告)号:US1358650A
公开(公告)日:1920-11-09
申请号:US30482319
申请日:1919-06-17
Applicant: RAYMOND PENDLETON ERNEST
Inventor: RAYMOND PENDLETON ERNEST
IPC: A01B37/00
CPC classification number: A01B37/00
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