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发明名称
Perfectionnement aux appareils cinématographiques à deroulement continu du film
摘要
申请公布号
FR982824(A)
申请公布日期
1951.06.15
申请号
FRD982824
申请日期
1949.03.11
申请人
发明人
BAIN PIERRE
分类号
G03B41/10
主分类号
G03B41/10
代理机构
代理人
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