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公开(公告)号:US1117540A
公开(公告)日:1914-11-17
申请号:US1911608588
申请日:1911-02-14
Applicant: F J HAWK , H D KNIGHT
Inventor: WOOD JARETT B
CPC classification number: A01B63/1006
公开(公告)号:US1117540A
公开(公告)日:1914-11-17
申请号:US1911608588
申请日:1911-02-14
Applicant: F J HAWK , H D KNIGHT
Inventor: WOOD JARETT B
CPC classification number: A01B63/1006