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发明名称
Variable gain circuit with outputs equal to product of selective inputs
摘要
申请公布号
US3004224(A)
申请公布日期
1961.10.10
申请号
US19560614012
申请日期
1956.10.04
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
YANDO STEPHEN
分类号
H04N5/14;H04N5/208
主分类号
H04N5/14
代理机构
代理人
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地址
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