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发明名称
Sound track cleaner for motion picture film
摘要
申请公布号
US2238996(A)
申请公布日期
1941.04.22
申请号
US19360113677
申请日期
1936.12.01
申请人
HAROLD J. NAGLE;ROY J. FISHER;NELSON H. COPP
发明人
FISHER ROY J.
分类号
G11B23/50
主分类号
G11B23/50
代理机构
代理人
主权项
地址
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