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经营范围
发明名称
GRAIN GRADER AND CLEANING MACHINE
摘要
申请公布号
CA308490(A)
申请公布日期
1931.02.10
申请号
CAD308490
申请日期
申请人
JACOB SPENST
发明人
JACOB SPENST
分类号
主分类号
代理机构
代理人
主权项
地址
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