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发明名称
Improvements in or relating to pumps for use in testing gases
摘要
申请公布号
GB1017597(A)
申请公布日期
1966.01.19
申请号
GB19650033452
申请日期
1962.06.21
申请人
OTTO HEINRICH DRAGER
发明人
分类号
G01N1/00;G01N1/24;G01N31/22
主分类号
G01N1/00
代理机构
代理人
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