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发明名称
PNEUMOELECTRIC SIGNALLING DEVICE
摘要
申请公布号
SU940194(A1)
申请公布日期
1982.06.30
申请号
SU19803007697
申请日期
1980.11.14
申请人
USOV BORIS A,SU;PROTS YAROSLAV,SU
发明人
USOV BORIS A,SU;PROTS YAROSLAV I,SU
分类号
G08B9/20;F15B3/00;(IPC1-7):G08B9/20
主分类号
G08B9/20
代理机构
代理人
主权项
地址
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