Title:
【発明の名称】さく岩機
Document Type and Number:
Japanese Patent JPH0647904
Kind Code:
B2
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Inventors:
Nakai Sakae
Masataka Uozumi
Yuji Nagano
Haga Makoto
Hiromi Kawakami
Motoya Manhei
Masataka Uozumi
Yuji Nagano
Haga Makoto
Hiromi Kawakami
Motoya Manhei
Application Number:
JP3022587A
Publication Date:
June 22, 1994
Filing Date:
February 12, 1987
Export Citation:
Assignee:
Mitsui Construction Co., Ltd.
Yamamoto Iron Works Co., Ltd.
Yamamoto Iron Works Co., Ltd.
International Classes:
E21B1/26; B25D17/00; E21B1/00; (IPC1-7): E21C3/20; B25D17/00
Domestic Patent References:
| JPS4421122Y1 | ||||
| JP41025044Y1 |
Other References:
【文献】日本鉱業会誌、98[1136(1982)岡崎、P.991~992
Attorney, Agent or Firm:
Teruaki Koyama
Next Patent: EXTRACTION VESSEL OF SUPERCRITICAL FLUID EXTRACTOR