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发明名称
Phonographs
摘要
申请公布号
US3110500(A)
申请公布日期
1963.11.12
申请号
US19600029305
申请日期
1960.05.16
申请人
CHRISTIAN HANSEN HANS
发明人
HANSEN HANS CHRISTIAN
分类号
G11B17/14
主分类号
G11B17/14
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