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经营范围
发明名称
Sound recording machine
摘要
申请公布号
US2195758(A)
申请公布日期
1940.04.02
申请号
US19370166132
申请日期
1937.09.28
申请人
ARNO RYSICK
发明人
RYSICK ARNO
分类号
G11B3/08
主分类号
G11B3/08
代理机构
代理人
主权项
地址
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