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公开(公告)号:US792522A
公开(公告)日:1905-06-13
申请号:US1904229655
申请日:1904-10-22
Applicant: BUCYRUS CO
Inventor: KNOX SAMUEL LIPPINCOTT GRISWOLD , FERRIS WALTER
CPC classification number: E02F3/58
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公开(公告)号:US763869A
公开(公告)日:1904-06-28
申请号:US1903180419
申请日:1903-11-09
Applicant: BUCYRUS CO
Inventor: FERRIS WALTER
CPC classification number: B65G23/04
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