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发明名称
Device for controlling light intensity
摘要
申请公布号
US2766659(A)
申请公布日期
1956.10.16
申请号
US19500200273
申请日期
1950.12.11
申请人
CLEVITE CORPORATION
发明人
BAERWALD HANS G.
分类号
G02F1/03
主分类号
G02F1/03
代理机构
代理人
主权项
地址
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