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发明名称
RAILWAY TRACK BROOM
摘要
申请公布号
CA867592(A)
申请公布日期
1971.04.06
申请号
CAD867592
申请日期
申请人
THE MARMON GROUP
发明人
JOHN K. KERSHAW
分类号
主分类号
代理机构
代理人
主权项
地址
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