Title:
【発明の名称】ドリル工具、特にさく岩用ドリル
Document Type and Number:
Japanese Patent JP2002500713
Kind Code:
A
Inventors:
Petz, Wolfgang
Application Number:
JP50008599A
Publication Date:
January 08, 2002
Filing Date:
May 15, 1998
Export Citation:
Assignee:
Havera Probst Game Behr
International Classes:
E21B10/44; (IPC1-7): E21B10/44
Attorney, Agent or Firm:
Adachi Tsutomu