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发明名称
Paper feeding device
摘要
申请公布号
US2747717(A)
申请公布日期
1956.05.29
申请号
US19540477286
申请日期
1954.12.23
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
CUNNINGHAM JAMES M.;PRATT FRANCIS L.;KOVACH PAUL M.
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主分类号
代理机构
代理人
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