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发明名称
Photoelectric modulator
摘要
申请公布号
US2561219(A)
申请公布日期
1951.07.17
申请号
US19500150921
申请日期
1950.03.21
申请人
ALDEN PRODUCTS CO.
发明人
NYMAN ALEXANDER
分类号
H04N1/00;H04N1/407
主分类号
H04N1/00
代理机构
代理人
主权项
地址
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