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经营范围
发明名称
Water-resistant abrasive product and method of making same
摘要
申请公布号
US2165186(A)
申请公布日期
1939.07.04
申请号
US19360109747
申请日期
1936.11.07
申请人
ABRASIVE PRODUCTS, INC.
发明人
WALKER CHARLES R.
分类号
B24D3/34;B24D11/00
主分类号
B24D3/34
代理机构
代理人
主权项
地址
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