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经营范围
发明名称
Wide frequency range recording and reproducing apparatus
摘要
申请公布号
US2800384(A)
申请公布日期
1957.07.23
申请号
US19530363424
申请日期
1953.06.22
申请人
PARKER MCIVOR L
发明人
PARKER MCIVOR L.
分类号
G11B5/02;G11B5/53;G11B7/003;G11B9/08
主分类号
G11B5/02
代理机构
代理人
主权项
地址
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