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经营范围
发明名称
PNEUMATIC PERCUSSION HAMMER
摘要
申请公布号
GB1538505(A)
申请公布日期
1979.01.17
申请号
GB19760048290
申请日期
1976.11.19
申请人
LISTER W
发明人
分类号
B25D17/14;E21B1/30;E21B4/14;(IPC1-7):E21B1/06
主分类号
B25D17/14
代理机构
代理人
主权项
地址
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