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经营范围
发明名称
Improvements in apparatus for applying synchronization marks on picture and sound films
摘要
申请公布号
GB755687(A)
申请公布日期
1956.08.22
申请号
GB19540016991
申请日期
1954.06.09
申请人
THE VITARAMA CORPORATION
发明人
DRESSER WILLIS ROBERT
分类号
G03B21/50
主分类号
G03B21/50
代理机构
代理人
主权项
地址
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