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发明名称
Improvements in or relating to devices for operating the hammer leads in pile driving attachments
摘要
申请公布号
GB1147470(A)
申请公布日期
1969.04.02
申请号
GB19660056699
申请日期
1966.12.19
申请人
AAKERMANS VERKSTAD AB
发明人
分类号
E02D7/16;E02D13/04
主分类号
E02D7/16
代理机构
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