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发明名称
Perfectionnements aux procédés de fabrication et aux modes d'application du sulfure de selenium
摘要
申请公布号
FR692758(A)
申请公布日期
1930.11.10
申请号
FRD692758
申请日期
1930.03.26
申请人
COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON
发明人
分类号
C01B19/04
主分类号
C01B19/04
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