Title:
地中障害物の破砕方法及び破砕装置
Document Type and Number:
Japanese Patent JP6408795
Kind Code:
B2
Inventors:
Ji-shu Akira
Yasuhiro Goto
Yasuhiro Goto
Application Number:
JP2014119460A
Publication Date:
October 17, 2018
Filing Date:
June 10, 2014
Export Citation:
Assignee:
Sanwa Kiko Co., Ltd.
Omtech Co., Ltd.
Omtech Co., Ltd.
International Classes:
E21B6/04
Domestic Patent References:
| JP60141987A | ||||
| JP2005273293A |
Foreign References:
| US5549170 |
Attorney, Agent or Firm:
Hiroshi Masaki
Yuko Mikami
Tadashi Fujikawa
Yuko Mikami
Tadashi Fujikawa