Title:
削孔装置
Document Type and Number:
Japanese Patent JP4324065
Kind Code:
B2
Inventors:
Akio Majima
Nonami Kazumi
Nonami Masatoshi
Nonami Kazumi
Nonami Masatoshi
Application Number:
JP2004273470A
Publication Date:
September 02, 2009
Filing Date:
September 21, 2004
Export Citation:
Assignee:
Akio Majima
Nonami Kazumi
Nonami Masatoshi
Nonami Kazumi
Nonami Masatoshi
International Classes:
E21B15/04
Domestic Patent References:
| JP11101085A | ||||
| JP2001248377A | ||||
| JP2000136691A | ||||
| JP7304594A | ||||
| JP4031593A |
Attorney, Agent or Firm:
Rikio Murota