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经营范围
发明名称
Improvements in dry gas meters
摘要
申请公布号
GB544752(A)
申请公布日期
1942.04.27
申请号
GB19400017687
申请日期
1940.12.14
申请人
PARKINSON & COWAN (GAS METERS) LIMITED;LEONARD HUGH ROLFE;ROY ROBERT RITSON DOUGLAS
发明人
分类号
G01F3/22
主分类号
G01F3/22
代理机构
代理人
主权项
地址
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