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经营范围
发明名称
Perfectionnements aux machines à meuler
摘要
申请公布号
FR677690(A)
申请公布日期
1930.03.13
申请号
FRD677690
申请日期
1929.07.01
申请人
NORTON COMPANY
发明人
分类号
B24B27/00
主分类号
B24B27/00
代理机构
代理人
主权项
地址
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