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经营范围
发明名称
Vacuum type lead wire detector for an automatic stem machine
摘要
申请公布号
US2843271(A)
申请公布日期
1958.07.15
申请号
US19540477332
申请日期
1954.12.23
申请人
WESTINGHOUSE ELECTRIC CORPORATION
发明人
PETRO JAMES
分类号
H01J9/46
主分类号
H01J9/46
代理机构
代理人
主权项
地址
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