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发明名称
PLUGGING CHISEL
摘要
申请公布号
CA463770(A)
申请公布日期
1950.03.21
申请号
CAD463770
申请日期
申请人
ARCHER D. BUTT
发明人
ARCHER D. BUTT
分类号
主分类号
代理机构
代理人
主权项
地址
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