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发明名称
GAS METERS
摘要
申请公布号
CA622524(A)
申请公布日期
1961.06.20
申请号
CAD622524
申请日期
申请人
TE-HA FRIEDRICH W. MARTENS
发明人
HEINZ MARTENS;FRIEDRICH MARTENS
分类号
主分类号
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代理人
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