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发明名称
Process for the preparation of paper stock
摘要
申请公布号
US2331455(A)
申请公布日期
1943.10.12
申请号
US19370147211
申请日期
1937.06.09
申请人
THE COWLES COMPANY
发明人
COWLES EDWIN
分类号
D21B1/12
主分类号
D21B1/12
代理机构
代理人
主权项
地址
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