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发明名称
CALL-DISTRIBUTING TELEPHONE SYSTEM
摘要
申请公布号
CA609058(A)
申请公布日期
1960.11.22
申请号
CAD609058
申请日期
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
ROBERT V. JUDY
分类号
主分类号
代理机构
代理人
主权项
地址
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