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发明名称
MECCANISMO PER LA GUIDA E LA CENTRATURA DI UN FIORETTO DI PERFORAZIONE
摘要
申请公布号
IT1194073(B)
申请公布日期
1988.09.14
申请号
IT19810022527
申请日期
1981.06.23
申请人
OY TAMPELLA AB
发明人
LEPPALA MATTI
分类号
E21B17/10;E21B19/24;(IPC1-7):E21C/
主分类号
E21B17/10
代理机构
代理人
主权项
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