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发明名称
Apparatus for determining the mean of indications
摘要
申请公布号
GB338416(A)
申请公布日期
1930.11.20
申请号
GB19290039530
申请日期
1929.12.27
申请人
BARR AND STROUD, LIMITED;CHARLES DALRYMPLE MACGILL
发明人
分类号
G01C3/00
主分类号
G01C3/00
代理机构
代理人
主权项
地址
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