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发明名称
Apparatus for simultaneously producing moving pictures and reproducing sound pictures
摘要
申请公布号
US1982600(A)
申请公布日期
1934.11.27
申请号
US19310568142
申请日期
1931.10.10
申请人
MOVIETONEWS, INC.
发明人
SPONABLE EARL I.
分类号
G03B21/56
主分类号
G03B21/56
代理机构
代理人
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地址
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