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发明名称
Means for viewing transparent pictures
摘要
申请公布号
GB810669(A)
申请公布日期
1959.03.18
申请号
GB19560012450
申请日期
1956.04.24
申请人
THOMAS HENRY CLARKE
发明人
分类号
G03B23/10
主分类号
G03B23/10
代理机构
代理人
主权项
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