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发明名称
Registering device
摘要
申请公布号
US2208164(A)
申请公布日期
1940.07.16
申请号
US19370151513
申请日期
1937.07.01
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
SAGEMAN EDWARD AUGUSTUS
分类号
H04M3/36
主分类号
H04M3/36
代理机构
代理人
主权项
地址
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