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发明名称
Telephone line clearing relay
摘要
申请公布号
US3150237(A)
申请公布日期
1964.09.22
申请号
US19610090817
申请日期
1961.02.21
申请人
BALDIK FRANK C;DANIEL STRASZEWSKI
发明人
BALDIK FRANK C.;STRASZEWSKI DANIEL
分类号
H04Q5/00
主分类号
H04Q5/00
代理机构
代理人
主权项
地址
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