Title:
【発明の名称】埋設管の損傷監視装置
Document Type and Number:
Japanese Patent JP3063878
Kind Code:
B2
Inventors:
Yasuharu Hosohara
Kenji Suyama
Kenji Suyama
Application Number:
JP20666093A
Publication Date:
July 12, 2000
Filing Date:
August 20, 1993
Export Citation:
Assignee:
Tokyo Gas Co., Ltd.
International Classes:
G01N27/20; (IPC1-7): G01N27/20
Domestic Patent References:
| JP6281557A | ||||
| JP238963A | ||||
| JP4194742A | ||||
| JP3148058A |
Attorney, Agent or Firm:
Koji Misaki