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发明名称
Perfectionnements aux dispositifs pour l'éclairage des cadrans d'intruments
摘要
申请公布号
FR679166(A)
申请公布日期
1930.04.09
申请号
FRD679166
申请日期
1929.07.13
申请人
PIONEER INSTRUMENT COMPANY INCORPORATED
发明人
分类号
G01D11/28
主分类号
G01D11/28
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