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发明名称
Talking machine
摘要
申请公布号
US2100686(A)
申请公布日期
1937.11.30
申请号
US19330685452
申请日期
1933.08.16
申请人
CHRISTOPHER COLLARO;GEORGE LEWIN DESMOND
发明人
COLLARO CHRISTOPHER;LEWIN DESMOND GEORGE
分类号
G11B3/085;G11B17/04
主分类号
G11B3/085
代理机构
代理人
主权项
地址
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