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发明名称
Pulse converting system
摘要
申请公布号
US2643331(A)
申请公布日期
1953.06.23
申请号
US19440556741
申请日期
1944.10.02
申请人
FEDERAL TELEPHONE AND RADIO CORPORATION
发明人
FRANKEL SIDNEY
分类号
H03K5/01
主分类号
H03K5/01
代理机构
代理人
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地址
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