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发明名称
Security telephone cable with jammer and alarm
摘要
申请公布号
US2691698(A)
申请公布日期
1954.10.12
申请号
US19500192241
申请日期
1950.10.26
申请人
RESEARCH PRODUCTS, INCORPORATED
发明人
SCHMIDT KENNETH H.
分类号
H01B7/32
主分类号
H01B7/32
代理机构
代理人
主权项
地址
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