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发明名称
Drop hammer
摘要
申请公布号
GB2078148(A)
申请公布日期
1982.01.06
申请号
GB19800004970
申请日期
1980.02.14
申请人
DELVA & CO (ENGINEERING) LTD
发明人
分类号
B21J7/40;E02D7/02;E02D7/08;(IPC1-7):B21J7/06
主分类号
B21J7/40
代理机构
代理人
主权项
地址
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