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发明名称
Phonograph
摘要
申请公布号
US2026257(A)
申请公布日期
1935.12.31
申请号
US19300473995
申请日期
1930.08.08
申请人
STROMBERG-CARLSON TELEPHONE MANUFACTURING COMPANY
发明人
STOCKTON JACK POTTER
分类号
G11B17/04
主分类号
G11B17/04
代理机构
代理人
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