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发明名称
Taper thread gage
摘要
申请公布号
US2435268(A)
申请公布日期
1948.02.03
申请号
US19440558142
申请日期
1944.10.11
申请人
NILES-BEMENT-PONT COMPANY
发明人
CHILDS GORDON E.
分类号
主分类号
代理机构
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