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发明名称
Improvements in or relating to variable lens systems of kinematograph projectors
摘要
申请公布号
GB374290(A)
申请公布日期
1932.06.09
申请号
GB19310017972
申请日期
1931.06.22
申请人
NORMAN KERSHAW;SOHO LIMITED
发明人
分类号
G03B19/18
主分类号
G03B19/18
代理机构
代理人
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