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发明名称
PNEUMATIC SIGNALLING DEVICE
摘要
申请公布号
SU985775(A1)
申请公布日期
1982.12.30
申请号
SU19813314472
申请日期
1981.07.01
申请人
GRISHIN LEV,SU
发明人
GRISHIN LEV I,SU
分类号
G06D1/02;G08B19/00;(IPC1-7):G06D1/02
主分类号
G06D1/02
代理机构
代理人
主权项
地址
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