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发明名称
Refining and circulating device for paper stock
摘要
申请公布号
US1842577(A)
申请公布日期
1932.01.26
申请号
US19290388958
申请日期
1929.08.28
申请人
BOND JOSEPH E
发明人
BOND JOSEPH E.
分类号
B02C21/00
主分类号
B02C21/00
代理机构
代理人
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