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发明名称
Testing device for threaded articles
摘要
申请公布号
US2030464(A)
申请公布日期
1936.02.11
申请号
US19330680416
申请日期
1933.07.14
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
NILSON FREDERICK C.
分类号
G01L5/00
主分类号
G01L5/00
代理机构
代理人
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地址
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