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发明名称
Electric transmitter for gas analyzers
摘要
申请公布号
US1993023(A)
申请公布日期
1935.03.05
申请号
US19270222185
申请日期
1927.09.26
申请人
REPUBLIC FLOW METERS CO.
发明人
SPITZGLASS ALBERT F.
分类号
主分类号
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代理人
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