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发明名称
Telephone system
摘要
申请公布号
US2094132(A)
申请公布日期
1937.09.28
申请号
US19350031398
申请日期
1935.07.15
申请人
ASSOCIATED ELECTRIC LABORATORIES, INC.
发明人
MILLER MERTON R.
分类号
H04K1/00
主分类号
H04K1/00
代理机构
代理人
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地址
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