Title:
【発明の名称】大深度温泉水温度低下防止揚湯施設
Document Type and Number:
Japanese Patent JP2665977
Kind Code:
B2
Inventors:
Hiromitsu Sugawara
Application Number:
JP17125889A
Publication Date:
October 22, 1997
Filing Date:
July 04, 1989
Export Citation:
Assignee:
Yamadai Kiden Co., Ltd.
International Classes:
E21B17/00; E21B43/00; (IPC1-7): E21B43/00
Attorney, Agent or Firm:
Yozo