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法人/股东/高管

发明名称	Tongs
摘要
申请公布号	US1900378(A)	申请公布日期	1933.03.07
申请号	US19300477586	申请日期	1930.08.25
申请人	BAASH LAWRENCE F;MAXWELL WILLIAM H	发明人	BAASH LAWRENCE F.;MAXWELL WILLIAM H.
分类号	E21B19/16	主分类号	E21B19/16
代理机构		代理人
主权项
地址

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