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发明名称
摘要
申请公布号
FR2242669(B1)
申请公布日期
1978.10.06
申请号
FR19740029583
申请日期
1974.08.29
申请人
MINE SAFETY APPLIANCES CY
发明人
分类号
G01F23/26;(IPC1-7):G01F23/26
主分类号
G01F23/26
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代理人
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