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发明名称
APPARATUS FOR SAMPLING OF SOLID SUSPENSIONS FROM DUST CONTAMINATED AIR PARTICULARLY MINE AIR
摘要
申请公布号
PL116110(B1)
申请公布日期
1981.05.30
申请号
PL19780210299
申请日期
1978.10.13
申请人
发明人
分类号
E21F;E21F5/00;G01N1/24;(IPC1-7):G01N1/24
主分类号
E21F
代理机构
代理人
主权项
地址
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