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发明名称
Method of coloring paper
摘要
申请公布号
US1889020(A)
申请公布日期
1932.11.29
申请号
US19310582996
申请日期
1931.12.24
申请人
KEITH PAPER COMPANY
发明人
GROGAN WILLIAM H.;LADD FRANK C.
分类号
D21H21/28;D21H23/28;D21H27/02
主分类号
D21H21/28
代理机构
代理人
主权项
地址
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