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发明名称
Picture Viewer
摘要
申请公布号
GB1173731(A)
申请公布日期
1969.12.10
申请号
GB19680016719
申请日期
1968.04.08
申请人
JOHN HENRY WEGGELAND
发明人
JOHN HENRY WEGGELAND
分类号
G02B27/02
主分类号
G02B27/02
代理机构
代理人
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