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经营范围
发明名称
Improvements in or relating to roller grinding mills
摘要
申请公布号
GB408026(A)
申请公布日期
1934.04.05
申请号
GB19320028744
申请日期
1932.10.14
申请人
ALBERT EDWARD BARRETT;DAVEY, PAXMAN & COMPANY (COLCHESTER) LIMITED
发明人
分类号
B02C4/18
主分类号
B02C4/18
代理机构
代理人
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