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发明名称
Improvements in or relating to trenching machines
摘要
申请公布号
GB813694(A)
申请公布日期
1959.05.21
申请号
GB19560002164
申请日期
1956.01.23
申请人
CLAUDE WILLIAM HOWLETT
发明人
分类号
E02F3/28;E02F3/30;E02F3/42;E02F5/02
主分类号
E02F3/28
代理机构
代理人
主权项
地址
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