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发明名称
Sound synchronizing equipment
摘要
申请公布号
US2241496(A)
申请公布日期
1941.05.13
申请号
US19380245663
申请日期
1938.12.14
申请人
GARDNER DISPLAYS COMPANY
发明人
WALLACE FRED C.
分类号
G09F25/00
主分类号
G09F25/00
代理机构
代理人
主权项
地址
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