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发明名称
NITROUS FUME SAMPLER
摘要
申请公布号
GB1515421(A)
申请公布日期
1978.06.21
申请号
GB19760006126
申请日期
1977.02.11
申请人
COAL IND LTD
发明人
分类号
G01N31/00;G01N33/00;(IPC1-7):G01N31/06
主分类号
G01N31/00
代理机构
代理人
主权项
地址
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