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发明名称
Dispositif pour l'exhibition ininterrompue et pour le rebobinage automatique des films
摘要
申请公布号
FR678243(A)
申请公布日期
1930.03.20
申请号
FRD678243
申请日期
1929.07.10
申请人
发明人
EICKHOFF RUDOLF
分类号
G03B1/22
主分类号
G03B1/22
代理机构
代理人
主权项
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