Title:
掘削機におけるガイドセルの中折れ機構
Document Type and Number:
Japanese Patent JP4416253
Kind Code:
B2
Inventors:
Hiroshi Unejima
Hiroaki Mori
Hiroaki Mori
Application Number:
JP2000045638A
Publication Date:
February 17, 2010
Filing Date:
February 23, 2000
Export Citation:
Assignee:
Mining Industry Co., Ltd.
International Classes:
E21B15/00
Domestic Patent References:
| JP8260461A | ||||
| JP61277518A |
Attorney, Agent or Firm:
Hirotaka Hatayama