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发明名称
Movie film feeder with simultaneous unwinding and rewinding action
摘要
申请公布号
US2643118(A)
申请公布日期
1953.06.23
申请号
US19500151458
申请日期
1950.03.23
申请人
BURSON SR HARRISON S
发明人
SR. HARRISON S. BURSON,
分类号
G03B21/32
主分类号
G03B21/32
代理机构
代理人
主权项
地址
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