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经营范围
发明名称
Improvements in or relating to differential manometers
摘要
申请公布号
GB647752(A)
申请公布日期
1950.12.20
申请号
GB19480031874
申请日期
1948.12.09
申请人
PARNALL (YATE) LIMITED
发明人
HINDLEY HARRY ROSTRON
分类号
G01L7/22
主分类号
G01L7/22
代理机构
代理人
主权项
地址
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