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经营范围
发明名称
Magnetic wire sound recording and reproducing apparatus
摘要
申请公布号
US2500903(A)
申请公布日期
1950.03.14
申请号
US19450608531
申请日期
1945.08.02
申请人
WIRECORDER CORPORATION
发明人
NEFF MORTIMER A.
分类号
G11B25/08
主分类号
G11B25/08
代理机构
代理人
主权项
地址
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