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经营范围
发明名称
GRINDING MILL
摘要
申请公布号
CA306888(A)
申请公布日期
1930.12.23
申请号
CAD306888
申请日期
申请人
ALFRED ERASMUS GEOFFREY MACCALLUM
发明人
ALFRED ERASMUS GEOFFREY MACCALLUM
分类号
主分类号
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