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经营范围
发明名称
Rice and grain washing utensil
摘要
申请公布号
US1792190(A)
申请公布日期
1931.02.10
申请号
US19290380702
申请日期
1929.07.24
申请人
DOS SANTOS ROAL
发明人
SANTOS ROAL DOS
分类号
B02B1/06
主分类号
B02B1/06
代理机构
代理人
主权项
地址
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