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发明名称
TRACK LAYING TRACK LAYING
摘要
申请公布号
GB1543988(A)
申请公布日期
1979.04.11
申请号
GB19760010713
申请日期
1976.03.17
申请人
BOOT ENG LTD H
发明人
分类号
E01B29/17;(IPC1-7):E01B29/16
主分类号
E01B29/17
代理机构
代理人
主权项
地址
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