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发明名称
Call transmitter
摘要
申请公布号
US2075536(A)
申请公布日期
1937.03.30
申请号
US19350041010
申请日期
1935.09.18
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
MILLER VICTOR F.
分类号
H04M1/274
主分类号
H04M1/274
代理机构
代理人
主权项
地址
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