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发明名称
Apparatus for dyeing paper and cardboard during the manufacture on paper making machines
摘要
申请公布号
US1823845(A)
申请公布日期
1931.09.15
申请号
US19300463295
申请日期
1930.06.23
申请人
PAUL SCHUMACHER
发明人
SCHUMACHER PAUL
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主分类号
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