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发明名称
Automatic record changing phonograph
摘要
申请公布号
US2546136(A)
申请公布日期
1951.03.20
申请号
US19460688064
申请日期
1946.08.02
申请人
RISTAUCRAT, INC.
发明人
RISTAU ARNOLD E.;RISTAU ALFRED G.
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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