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经营范围
发明名称
Process for marking two or more films exposed simultaneously to facilitate reproduction or projection in synchronism
摘要
申请公布号
GB387741(A)
申请公布日期
1933.02.16
申请号
GB19310025070
申请日期
1931.09.07
申请人
KAREL DEGL
发明人
分类号
G03B31/00
主分类号
G03B31/00
代理机构
代理人
主权项
地址
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