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发明名称
Apparatus for the transmission of alarm signals
摘要
申请公布号
US2644937(A)
申请公布日期
1953.07.07
申请号
US19500177267
申请日期
1950.08.02
申请人
SOCIETE FRANCAISE RADIO-ELECTRIQUE
发明人
CHAUVEAU LOUIS
分类号
G08B23/00;H04L15/26
主分类号
G08B23/00
代理机构
代理人
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地址
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