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发明名称
Color viewing device
摘要
申请公布号
US2268238(A)
申请公布日期
1941.12.30
申请号
US19400363477
申请日期
1940.10.30
申请人
PITTSBURGH PLATE GLASS COMPANY
发明人
BELL MAURICE G.
分类号
G01J3/52
主分类号
G01J3/52
代理机构
代理人
主权项
地址
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