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发明名称
Tungsten bronze rectifiers
摘要
申请公布号
US2760126(A)
申请公布日期
1956.08.21
申请号
US19530334316
申请日期
1953.01.30
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
KOPELMAN BERNARD
分类号
主分类号
代理机构
代理人
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