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发明名称
Means for the driving of motion-picture film
摘要
申请公布号
US2532542(A)
申请公布日期
1950.12.05
申请号
US19480063942
申请日期
1948.12.07
申请人
VALENTIN D AVIT RAYMOND FERNAN
发明人
D'AVIT RAYMOND FERNAND ADRIEN VALENTIN
分类号
G03B1/42
主分类号
G03B1/42
代理机构
代理人
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地址
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