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发明名称
Vérification optique du degré d'usure des lubrifiants
摘要
申请公布号
FR673736(A)
申请公布日期
1930.01.18
申请号
FRD673736
申请日期
1928.08.29
申请人
ETABLISSEMENTS FILMOGRAPH
发明人
分类号
G01N21/29
主分类号
G01N21/29
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代理人
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