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发明名称
Alarm signaling system
摘要
申请公布号
US2122460(A)
申请公布日期
1938.07.05
申请号
US19360114145
申请日期
1936.12.04
申请人
ASSOCIATED ELECTRIC LABORATORIES, INC.
发明人
FFOLLIOTT CHARLES F.
分类号
H04M11/04
主分类号
H04M11/04
代理机构
代理人
主权项
地址
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