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经营范围
发明名称
TELEPHONE SYSTEM
摘要
申请公布号
CA842959(A)
申请公布日期
1970.05.26
申请号
CAD842959
申请日期
申请人
C. P. CLARE AND COMPANY
发明人
DONALD E. DENMAN
分类号
主分类号
代理机构
代理人
主权项
地址
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