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发明名称
Phonograph
摘要
申请公布号
US2129612(A)
申请公布日期
1938.09.06
申请号
US19340735118
申请日期
1934.07.14
申请人
LLOYD H. SMITH
发明人
WHITE GEORGE A.
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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