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经营范围
发明名称
OPTICAL APPARATUS
摘要
申请公布号
GB2020843(A)
申请公布日期
1979.11.21
申请号
GB19790011995
申请日期
1979.04.05
申请人
PILKINGTON P E LTD
发明人
分类号
G02B27/00;G02B27/01;(IPC1-7):G02B27/14
主分类号
G02B27/00
代理机构
代理人
主权项
地址
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