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经营范围
发明名称
Excavation apparatus
摘要
申请公布号
GB2106959(A)
申请公布日期
1983.04.20
申请号
GB19820026774
申请日期
1982.09.20
申请人
* PERARD ENGINEERING LIMITED
发明人
LAWRENCE EDWARD BERNARD * COOPER;ERIC ARTHUR * JACKSON;BRIAN MATTHEW * CURTIS
分类号
E21D9/12;(IPC1-7):E21C27/46
主分类号
E21D9/12
代理机构
代理人
主权项
地址
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