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发明名称
Decreasing tape wear on exit side of vacuum column
摘要
申请公布号
US3217956(A)
申请公布日期
1965.11.16
申请号
US19610119414
申请日期
1961.06.26
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
NEJEZCHLEB VLADIMIR
分类号
G11B15/58
主分类号
G11B15/58
代理机构
代理人
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