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经营范围
发明名称
DIGITAL SIGNAL RECORD SYSTEMS
摘要
申请公布号
CA1023851(A)
申请公布日期
1978.01.03
申请号
CA19750232792
申请日期
1975.07.31
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
CANNON, MAXWELL R.
分类号
G11B20/10;(IPC1-7):G11B20/10
主分类号
G11B20/10
代理机构
代理人
主权项
地址
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