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发明名称
BOOM TYPE EXCAVATOR
摘要
申请公布号
CA421500(A)
申请公布日期
1944.07.18
申请号
CAD421500
申请日期
申请人
THE BUCKEYE TRACTION DITCHER COMPANY
发明人
CHARLES L. GEORGE;RALPH O. GERDEMAN;HUBERT HOLLMANN;WILLIAM G. VANVOORHIS
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