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发明名称
Tube tester
摘要
申请公布号
US2172953(A)
申请公布日期
1939.09.12
申请号
US19380213947
申请日期
1938.06.15
申请人
BUCHARD GEORGE M
发明人
BUCHARD GEORGE M.
分类号
G01R31/25
主分类号
G01R31/25
代理机构
代理人
主权项
地址
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