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发明名称
Record changer
摘要
申请公布号
US2564455(A)
申请公布日期
1951.08.14
申请号
US19450607878
申请日期
1945.07.30
申请人
RAYTHEON MANUFACTURING COMPANY
发明人
STOLBERG SVEN A.
分类号
G11B3/08;G11B17/02
主分类号
G11B3/08
代理机构
代理人
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