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发明名称
TWO-PIECE RELEASABLE GRIPPER
摘要
申请公布号
US3422505(A)
申请公布日期
1969.01.21
申请号
USD3422505
申请日期
1967.11.03
申请人
DE LONG CORP.
发明人
CHARLES O. SLEMMONS
分类号
E02B17/08;E04G11/24;E04G21/16;E21B15/02;(IPC1-7):E04B1/56;F16B9/02
主分类号
E02B17/08
代理机构
代理人
主权项
地址
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