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发明名称
Valve means of gas meters
摘要
申请公布号
US2145340(A)
申请公布日期
1939.01.31
申请号
US19350051532
申请日期
1935.11.25
申请人
ALEXANDER BUJNOWSKI
发明人
BUJNOWSKI ALEXANDER
分类号
G01F3/22
主分类号
G01F3/22
代理机构
代理人
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地址
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