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经营范围
发明名称
Improvements in or relating to cinematograph cameras and projectors
摘要
申请公布号
GB344511(A)
申请公布日期
1931.03.09
申请号
GB19290037611
申请日期
1929.12.07
申请人
ARTHUR WILLIAM KINGSTON;SPICERS LIMITED
发明人
分类号
G02B7/16;G03B21/32
主分类号
G02B7/16
代理机构
代理人
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地址
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