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发明名称
Intermittent film advancing mechanism utilizing air pressure
摘要
申请公布号
US2560918(A)
申请公布日期
1951.07.17
申请号
US19490082866
申请日期
1949.03.22
申请人
RADIO CORPORATION OF AMERICA
发明人
BEDFORD ALDA V.;BALLARD RANDALL C.
分类号
G03B1/18
主分类号
G03B1/18
代理机构
代理人
主权项
地址
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