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发明名称
Improvements in or relating to optical instruments
摘要
申请公布号
GB1029302(A)
申请公布日期
1966.05.11
申请号
GB19620001467
申请日期
1962.01.15
申请人
W. WATSON & SONS LIMITED;HAROLD HORACE HOPKINS
发明人
分类号
G02B21/00;G02B21/18
主分类号
G02B21/00
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代理人
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