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经营范围
发明名称
Diavision
摘要
申请公布号
US2225097(A)
申请公布日期
1940.12.17
申请号
US19370135718
申请日期
1937.04.08
申请人
CAWLEY ALOYSIUS J
发明人
CAWLEY ALOYSIUS J.
分类号
G02B23/12;H04N5/30;H04N5/33
主分类号
G02B23/12
代理机构
代理人
主权项
地址
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