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经营范围
发明名称
Portable grinding machine
摘要
申请公布号
US2126336(A)
申请公布日期
1938.08.09
申请号
US19360113951
申请日期
1936.12.03
申请人
WILLIAM MALL ARTHUR
发明人
MALL ARTHUR WILLIAM
分类号
E01B31/17
主分类号
E01B31/17
代理机构
代理人
主权项
地址
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