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发明名称
Improvements in or relating to magnetic speed indicators
摘要
申请公布号
GB369997(A)
申请公布日期
1932.03.22
申请号
GB19300038580
申请日期
1930.12.22
申请人
ETABLISSEMENTS ED. JAEGER
发明人
分类号
G01P3/495
主分类号
G01P3/495
代理机构
代理人
主权项
地址
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