Title:
防音装置および加工装置
Document Type and Number:
Japanese Patent JP4161116
Kind Code:
B1
Inventors:
Akio Kamishima
Application Number:
JP2007253139A
Publication Date:
October 08, 2008
Filing Date:
September 28, 2007
Export Citation:
Assignee:
Kamijima Gumi Co., Ltd.
International Classes:
E21B12/00; B25D17/11
Domestic Patent References:
| JP2006022568A | ||||
| JP6185055A | ||||
| JP11022359A | ||||
| JP56083388U |
Attorney, Agent or Firm:
Kakusho Shoichi
Ryose Uji
Ryose Uji