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经营范围
发明名称
An improved ultrasonic energy meter
摘要
申请公布号
GB956156(A)
申请公布日期
1964.04.22
申请号
GB19610026432
申请日期
1961.07.20
申请人
GEORGE ANDREW DOUGLAS GORDON
发明人
分类号
G01H3/10
主分类号
G01H3/10
代理机构
代理人
主权项
地址
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