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公开(公告)号:US889202A
公开(公告)日:1908-06-02
申请号:US1907392922
申请日:1907-09-14
Applicant: BUCYRUS CO
Inventor: CLIFFORD WILLIAM , FERRIS WALTER
CPC classification number: E02F3/4075
公开(公告)号:US889202A
公开(公告)日:1908-06-02
申请号:US1907392922
申请日:1907-09-14
Applicant: BUCYRUS CO
Inventor: CLIFFORD WILLIAM , FERRIS WALTER
CPC classification number: E02F3/4075