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经营范围
发明名称
Improvements in classifiers
摘要
申请公布号
GB672186(A)
申请公布日期
1952.05.14
申请号
GB19500021665
申请日期
1950.09.01
申请人
BABCOCK & WILCOX, LIMITED
发明人
分类号
B02C23/00
主分类号
B02C23/00
代理机构
代理人
主权项
地址
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