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发明名称
Device for feeding films
摘要
申请公布号
US2172812(A)
申请公布日期
1939.09.12
申请号
US19390255533
申请日期
1939.02.09
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
WEENEN FRANCISCUS LAMBERTUS VAN
分类号
G03B1/42
主分类号
G03B1/42
代理机构
代理人
主权项
地址
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