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经营范围
发明名称
Grinding mill
摘要
申请公布号
US2324502(A)
申请公布日期
1943.07.20
申请号
US19400364787
申请日期
1940.11.08
申请人
HELLER WILLIAM F
发明人
HELLER WILLIAM F.
分类号
B02C17/10
主分类号
B02C17/10
代理机构
代理人
主权项
地址
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