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发明名称
OPTICAL VIEWING SYSTEMS
摘要
申请公布号
GB1225035(A)
申请公布日期
1971.03.17
申请号
GB19680012579
申请日期
1968.03.15
申请人
BARR AND STROUD LIMITED
发明人
DAVID SCARTH RITCHIE
分类号
G02B23/00
主分类号
G02B23/00
代理机构
代理人
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