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经营范围
发明名称
System of light modulation
摘要
申请公布号
US2432104(A)
申请公布日期
1947.12.09
申请号
US19450582112
申请日期
1945.03.10
申请人
PHOTOSWITCH, INC.
发明人
THOMSON ELIHU CRAIG
分类号
H05B39/08
主分类号
H05B39/08
代理机构
代理人
主权项
地址
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