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经营范围
发明名称
Polishing pad
摘要
申请公布号
US2196079(A)
申请公布日期
1940.04.02
申请号
US19380224692
申请日期
1938.08.13
申请人
LESLIE H. GREEN
发明人
PYLE LEON N.
分类号
B24D13/14
主分类号
B24D13/14
代理机构
代理人
主权项
地址
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