Title:
打撃力発生装置
Document Type and Number:
Japanese Patent JP4479987
Kind Code:
B2
Inventors:
Aoki Katsuri
Application Number:
JP2003187535A
Publication Date:
June 09, 2010
Filing Date:
June 30, 2003
Export Citation:
Assignee:
Fuso Industry Co., Ltd.
International Classes:
E02D7/08; E21B7/04; E21B1/02; E21B1/16; E21B4/00
Domestic Patent References:
| JP54108407A | ||||
| JP57174533A | ||||
| JP2006152Y2 | ||||
| JP2167924A | ||||
| JP3085813U |
Attorney, Agent or Firm:
Sadanobu Shimizu