Title:
発破掘削工法
Document Type and Number:
Japanese Patent JP4216957
Kind Code:
B2
Inventors:
Katsuzo Teramoto
Application Number:
JP19201799A
Publication Date:
January 28, 2009
Filing Date:
July 06, 1999
Export Citation:
Assignee:
Nishimatsu Construction Co., Ltd.
International Classes:
F42D3/04; E21D9/00; F42D1/08
Domestic Patent References:
| JP2000155855A | ||||
| JP8086600A | ||||
| JP7197766A | ||||
| JP5346300A | ||||
| JP61137991A |
Foreign References:
| US5634691 | ||||
| DE3310442A |
Attorney, Agent or Firm:
Hiroshi Arafune
Yoshio Arafune
Yoshio Arafune