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发明名称
ALARM SYSTEM FOR MINE SHAFT CONTROL AND SIGNALLING APPARATUSVLJAJUHHEGO USTROJJSTVA
摘要
申请公布号
PL118054(B2)
申请公布日期
1981.09.30
申请号
PL19790217439
申请日期
1979.07.27
申请人
发明人
分类号
B66B5/00;G08B;(IPC1-7):B66B5/00
主分类号
B66B5/00
代理机构
代理人
主权项
地址
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