Title:
【発明の名称】掘削機の揺動装置
Document Type and Number:
Japanese Patent JP2829525
Kind Code:
B2
Inventors:
OOKANDA SATORU
UNESHIMA HIROSHI
UNESHIMA HIROSHI
Application Number:
JP18188789A
Publication Date:
November 25, 1998
Filing Date:
July 14, 1989
Export Citation:
Assignee:
KOKEN KOGYO KK
International Classes:
E02D3/12; E02D5/18; E02D17/13; E02F5/02; E21B3/02; E21B3/025; (IPC1-7): E02D3/12; E02D5/18; E21B3/02
Domestic Patent References:
| JP52149813A | ||||
| JP5331311A | ||||
| JP1260115A |
Attorney, Agent or Firm:
Masami Hattori (1 person outside)