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发明名称
Watercolor printing
摘要
申请公布号
US1838218(A)
申请公布日期
1931.12.29
申请号
US19280328622
申请日期
1928.12.26
申请人
DURHAM HOBART N
发明人
DURHAM HOBART N.
分类号
B41N3/00
主分类号
B41N3/00
代理机构
代理人
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