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发明名称
Sheet-collating device for typewriters
摘要
申请公布号
US1959447(A)
申请公布日期
1934.05.22
申请号
US19320602406
申请日期
1932.04.01
申请人
UNDERWOOD ELLIOTT FISHER COMPANY
发明人
SMITH JESSE A. B.
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主分类号
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