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经营范围
发明名称
Flowmeter
摘要
申请公布号
US2258023(A)
申请公布日期
1941.10.07
申请号
US19390302287
申请日期
1939.11.01
申请人
OXWELD ACETYLENE COMPANY
发明人
MCKERNON JOHN W.
分类号
G01F1/22
主分类号
G01F1/22
代理机构
代理人
主权项
地址
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