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经营范围
发明名称
Telephone system coin control adapter and connector
摘要
申请公布号
US2657267(A)
申请公布日期
1953.10.27
申请号
US19490080993
申请日期
1949.03.11
申请人
STROMBERG-CARLSON COMPANY
发明人
PHARIS WILLIAM W.
分类号
H04M17/02
主分类号
H04M17/02
代理机构
代理人
主权项
地址
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