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发明名称
GRINDING MACHINE
摘要
申请公布号
CA380389(A)
申请公布日期
1939.03.28
申请号
CAD380389
申请日期
申请人
NORTON COMPANY
发明人
GEORGE CROMPTON, JR.;CLARENCE JULIUS GREEN
分类号
主分类号
代理机构
代理人
主权项
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