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发明名称
Telephone system
摘要
申请公布号
US2060261(A)
申请公布日期
1936.11.10
申请号
US19340716571
申请日期
1934.03.21
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
STOKELY RAY L.
分类号
H04M15/10
主分类号
H04M15/10
代理机构
代理人
主权项
地址
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