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经营范围
发明名称
Magnetic transducing apparatus
摘要
申请公布号
US3193821(A)
申请公布日期
1965.07.06
申请号
US19620248341
申请日期
1962.12.31
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
KNOX LEWIS A.
分类号
H03M1/00
主分类号
H03M1/00
代理机构
代理人
主权项
地址
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