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发明名称
Film-transport control for sound-film camera
摘要
申请公布号
USRE30808(E)
申请公布日期
1981.12.01
申请号
US19790009792
申请日期
1979.02.06
申请人
发明人
分类号
G03B1/50;G03B31/02
主分类号
G03B1/50
代理机构
代理人
主权项
地址
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