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发明名称
Knurled socketed screw
摘要
申请公布号
US2133465(A)
申请公布日期
1938.10.18
申请号
US19350026861
申请日期
1935.06.15
申请人
THE HOLO-KROME SCREW CORPORATION
发明人
PURTELL WILLIAM ARTHUR
分类号
F16B23/00
主分类号
F16B23/00
代理机构
代理人
主权项
地址
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