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经营范围
发明名称
Gas analysis apparatus
摘要
申请公布号
US1860541(A)
申请公布日期
1932.05.31
申请号
US19290405586
申请日期
1929.11.08
申请人
CHARLES ENGELHARD, INC.
发明人
HEBLER WILLIAM O.
分类号
G01N27/18
主分类号
G01N27/18
代理机构
代理人
主权项
地址
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