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发明名称
Paper filler
摘要
申请公布号
US2237374(A)
申请公布日期
1941.04.08
申请号
US19360090255
申请日期
1936.07.11
申请人
THE INSTITUTE OF PAPER CHEMISTRY
发明人
SMITH ALLAN K.
分类号
D21H17/68
主分类号
D21H17/68
代理机构
代理人
主权项
地址
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