Title:
【発明の名称】回転衝撃式掘削工具
Document Type and Number:
Japanese Patent JPH03502825
Kind Code:
A
Inventors:
Filatov Alexei Vladimirovich
Kuruyukov Georgii Mikhailovich
Onotsuki Melis Ivanovich
Grazkov Yury Vasilievich
Tsarapkin Victor Vyacheslavovich
Yakimov Vadim Petrovich
Zvarev Nikolai Alexeivic
Chuvilin Anatoly Mikhailovich
Dybov Sergey Victorovich
Kuruyukov Georgii Mikhailovich
Onotsuki Melis Ivanovich
Grazkov Yury Vasilievich
Tsarapkin Victor Vyacheslavovich
Yakimov Vadim Petrovich
Zvarev Nikolai Alexeivic
Chuvilin Anatoly Mikhailovich
Dybov Sergey Victorovich
Application Number:
JP50384689A
Publication Date:
June 27, 1991
Filing Date:
December 26, 1988
Export Citation:
Assignee:
Vsesoyuznyi Nauchi Noyce Sredva Tersky Institut Transport Nogo Streutelstova (Tunis)
International Classes:
E21B10/36; E21B1/00; E21B10/56; E21B10/58; (IPC1-7): E21B10/36; E21C3/00
Attorney, Agent or Firm:
Masahiko Takeda (2 outside)