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经营范围
发明名称
Spiral grinding machine
摘要
申请公布号
US2162758(A)
申请公布日期
1939.06.20
申请号
US19370157771
申请日期
1937.08.06
申请人
WILLIAM SHOTEY
发明人
SHOTEY WILLIAM
分类号
B24B3/16
主分类号
B24B3/16
代理机构
代理人
主权项
地址
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