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发明名称
Grading machine
摘要
申请公布号
US1960847(A)
申请公布日期
1934.05.29
申请号
US19330656110
申请日期
1933.02.10
申请人
NORTH AMERICAN HOLDING CORPORATION
发明人
JOHNSTON JAMES W.
分类号
A43D1/08
主分类号
A43D1/08
代理机构
代理人
主权项
地址
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