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发明名称
Record changing device
摘要
申请公布号
US2845271(A)
申请公布日期
1958.07.29
申请号
US19540437169
申请日期
1954.06.16
申请人
ELECTROACUSTIC G. M. B. H.
发明人
SCHELLER PAUL;OLDENBURG WALTER;CIMIOTTI JOSEF
分类号
G11B17/16
主分类号
G11B17/16
代理机构
代理人
主权项
地址
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