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发明名称
Papermaking machinery
摘要
申请公布号
US2693739(A)
申请公布日期
1954.11.09
申请号
US19510249022
申请日期
1951.10.01
申请人
RISAKU OKAWA;RIICHIRO OKAWA
发明人
OKAWA RISAKU;OKAWA RIICHIRO
分类号
D21F9/04
主分类号
D21F9/04
代理机构
代理人
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