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发明名称
Signaling system controlled from a subscriber station
摘要
申请公布号
US2831926(A)
申请公布日期
1958.04.22
申请号
US19540470253
申请日期
1954.11.22
申请人
GENERAL DYNAMICS CORPORATION
发明人
BERCH WILLIAM H.
分类号
H04Q3/00
主分类号
H04Q3/00
代理机构
代理人
主权项
地址
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