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发明名称
Record changer
摘要
申请公布号
GB735997(A)
申请公布日期
1955.08.31
申请号
GB19530028964
申请日期
1953.10.20
申请人
EMIL KNECHT
发明人
分类号
G11B19/265
主分类号
G11B19/265
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代理人
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