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发明名称
Nouveau produit industriel constitué par un écran de cinéma recouvert d'un enduit nacré
摘要
申请公布号
FR679803(A)
申请公布日期
1930.04.17
申请号
FRD679803
申请日期
1928.12.19
申请人
DESPOMMIERS-PAQUIER
发明人
分类号
G03B21/60
主分类号
G03B21/60
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