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发明名称
Perfectionnements apportés aux bobines pour pellicules de films cinématographiques
摘要
申请公布号
FR974598(A)
申请公布日期
1951.02.23
申请号
FRD974598
申请日期
1941.11.26
申请人
发明人
BECOTE ANTOINE
分类号
G03B21/32
主分类号
G03B21/32
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