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发明名称
Talking machine
摘要
申请公布号
US2056378(A)
申请公布日期
1936.10.06
申请号
US19330679531
申请日期
1933.07.08
申请人
WALTER WEIGEL
发明人
WEIGEL WALTER
分类号
G11B17/02
主分类号
G11B17/02
代理机构
代理人
主权项
地址
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