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摘要
申请公布号
US2229157(A)
申请公布日期
1941.01.21
申请号
US19380184546
申请日期
1938.01.12
申请人
TECHNICOLOR MOTION PICTURE CORPORATION
发明人
WHITTAKER LLOYED E.
分类号
G03B19/18
主分类号
G03B19/18
代理机构
代理人
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