Title:
ANNULAR AIR HAMMER DEVICE FOR EXCAVATION
Document Type and Number:
Japanese Patent JPS6299592
Kind Code:
A
Inventors:
AREKUSANDORU DOMITORIEBICHI KO
BORISU BORISOBICHI DANIROFU
BORISU NIKORAEBICHI SUMORIYANI
URADEIMIIRU PETOROBICHI BOJINS
DABIDO IOSHIFUOBICHI KOGAN
OREGU BASHIRIEBICHI SUMIRUNOFU
BUYACHIESURAFU NIKORAEBICHI SA
BORISU BORISOBICHI DANIROFU
BORISU NIKORAEBICHI SUMORIYANI
URADEIMIIRU PETOROBICHI BOJINS
DABIDO IOSHIFUOBICHI KOGAN
OREGU BASHIRIEBICHI SUMIRUNOFU
BUYACHIESURAFU NIKORAEBICHI SA
Application Number:
JP21283186A
Publication Date:
May 09, 1987
Filing Date:
September 11, 1986
Export Citation:
Assignee:
INST GORNOGO SIBIR AN SSSR
SUPECHIARU KONSUTO BUERO FUSES
SUPECHIARU KONSUTO BUERO FUSES
International Classes:
E21B1/30; E21B1/00; E21B4/14; E21B21/12; (IPC1-7): E21C3/24
Attorney, Agent or Firm:
Aoki Akira