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发明名称
Phonograph
摘要
申请公布号
US2245164(A)
申请公布日期
1941.06.10
申请号
US19380219328
申请日期
1938.07.15
申请人
THOMAS A. EDISON, INCORPORATED
发明人
SOMERS RICHARD M.
分类号
G11B25/02
主分类号
G11B25/02
代理机构
代理人
主权项
地址
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