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发明名称
Perfectionnements aux mécanismes destinés à communiquer un mouvement intermittent à une bande, telle qu'un film cinématographique
摘要
申请公布号
FR724134(A)
申请公布日期
1932.04.22
申请号
FRD724134
申请日期
1931.09.26
申请人
ELECTRICAL RESEARCH PRODUCTS INC.
发明人
分类号
G03B1/18
主分类号
G03B1/18
代理机构
代理人
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