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经营范围
发明名称
Indicateur instantané de débit pour gaz ou liquides
摘要
申请公布号
FR828131(A)
申请公布日期
1938.05.11
申请号
FRD828131
申请日期
1937.01.22
申请人
发明人
TERRAT
分类号
G01F1/20
主分类号
G01F1/20
代理机构
代理人
主权项
地址
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