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发明名称
Code call interrupter circuit
摘要
申请公布号
US2292183(A)
申请公布日期
1942.08.04
申请号
US19400366041
申请日期
1940.11.18
申请人
KELLOGG SWITCHBOARD AND SUPPLY COMPANY
发明人
WALLACE BERT A.
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
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地址
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