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经营范围
发明名称
ELECTROGRAPHITIC BRUSH
摘要
申请公布号
CA723100(A)
申请公布日期
1965.12.07
申请号
CAD723100
申请日期
申请人
STACKPOLE CARBON COMPANY
发明人
WALTER G. KRELLNER
分类号
主分类号
代理机构
代理人
主权项
地址
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