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发明名称
Receiving circuit
摘要
申请公布号
US1813232(A)
申请公布日期
1931.07.07
申请号
US19250026835
申请日期
1925.04.30
申请人
KELLOGG SWITCHBOARD AND SUPPLY COMPANY
发明人
CURRIER HIRAM D.
分类号
H03F3/02
主分类号
H03F3/02
代理机构
代理人
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地址
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