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发明名称
ELECTRICAL COMMUNICATION SYSTEM
摘要
申请公布号
CA408893(A)
申请公布日期
1942.11.24
申请号
CAD408893
申请日期
申请人
TELEPHONE MANUFACTURING COMPANY LIMITED
发明人
LESLIE HAROLD PADDLE;JAMES GEORGE FLINT
分类号
主分类号
代理机构
代理人
主权项
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