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经营范围
发明名称
Improvements in and relating to objectives
摘要
申请公布号
GB477448(A)
申请公布日期
1937.12.30
申请号
GB19360018073
申请日期
1936.06.30
申请人
HORACE WILLIAM LEE;KAPELLA LIMITED
发明人
分类号
G02B9/12
主分类号
G02B9/12
代理机构
代理人
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