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发明名称
Means for slating and synchronizing in motion pictures
摘要
申请公布号
US2236767(A)
申请公布日期
1941.04.01
申请号
US19370162611
申请日期
1937.09.07
申请人
PERCY TISON
发明人
TISON PERCY
分类号
主分类号
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