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发明名称
Automatic telephone system with paging equipment
摘要
申请公布号
US2966554(A)
申请公布日期
1960.12.27
申请号
US19570692659
申请日期
1957.10.28
申请人
SVENSKA RELAFABRIKEN ABN AB
发明人
DUBOIS MARTIN H.
分类号
H04M11/02
主分类号
H04M11/02
代理机构
代理人
主权项
地址
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