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经营范围
发明名称
Grit removal apparatus
摘要
申请公布号
US1997161(A)
申请公布日期
1935.04.09
申请号
US19320622899
申请日期
1932.07.15
申请人
THE DORR COMPANY, INC.
发明人
WEBER WILLIAM C.
分类号
B01D21/00
主分类号
B01D21/00
代理机构
代理人
主权项
地址
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