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发明名称
Apparatus for the preparation of paper stock and the like
摘要
申请公布号
US2218449(A)
申请公布日期
1940.10.15
申请号
US19370121837
申请日期
1937.01.22
申请人
THE COWLES COMPANY
发明人
COWLES EDWIN
分类号
B02C18/10;D21D1/32
主分类号
B02C18/10
代理机构
代理人
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