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经营范围
发明名称
Graining apparatus
摘要
申请公布号
US2458108(A)
申请公布日期
1949.01.04
申请号
US19460657030
申请日期
1946.03.25
申请人
SIMPSON JOHN M
发明人
SIMPSON JOHN M.
分类号
B41N3/04
主分类号
B41N3/04
代理机构
代理人
主权项
地址
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