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发明名称
Anchor assembly for retaining bolts in drilled holes
摘要
申请公布号
US3403594(A)
申请公布日期
1968.10.01
申请号
US19660565758
申请日期
1966.07.18
申请人
ZIMMER, KELLER AND CALVERT, INC.
发明人
NEWELL ARTHUR D.
分类号
E21D21/00;F16B13/08
主分类号
E21D21/00
代理机构
代理人
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