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经营范围
发明名称
Improvements in or relating to liquid flow meters
摘要
申请公布号
GB337974(A)
申请公布日期
1930.11.13
申请号
GB19290034053
申请日期
1929.11.08
申请人
JAMES EDWARD LEA
发明人
分类号
G01F15/07
主分类号
G01F15/07
代理机构
代理人
主权项
地址
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