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发明名称
Paper web support
摘要
申请公布号
US2012537(A)
申请公布日期
1935.08.27
申请号
US19310520611
申请日期
1931.03.06
申请人
AMERICAN SALES BOOK COMPANY, INC.
发明人
JANNEY JOHN B.
分类号
B41J15/12
主分类号
B41J15/12
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代理人
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