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发明名称
Perfectionnements apportés aux dispositifs de projection pour la cinématographie et analogue
摘要
申请公布号
FR1091873(A)
申请公布日期
1955.04.15
申请号
FRD1091873
申请日期
1953.10.28
申请人
发明人
STABLEFORD JOHN LESLIE
分类号
G03B21/20
主分类号
G03B21/20
代理机构
代理人
主权项
地址
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