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摘要
申请公布号
US2846594(A)
申请公布日期
1958.08.05
申请号
US19560574657
申请日期
1956.03.29
申请人
LIBRASCOPE, INCORPORATED
发明人
PANKRATZ A. J.;SCHMIDT LOTHAR M.
分类号
H03K23/54
主分类号
H03K23/54
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