Title:
PIPE PROPELLING METHOD
Document Type and Number:
Japanese Patent JPS58101996
Kind Code:
A
Inventors:
SAITOU TAKAYOSHI
KAWARAI KATSUNORI
KAWARAI KATSUNORI
Application Number:
JP19771381A
Publication Date:
June 17, 1983
Filing Date:
December 10, 1981
Export Citation:
Assignee:
TOA HARBOR WORKS CO LTD
International Classes:
E21D9/06; (IPC1-7): E21D9/06
Domestic Patent References:
| JPS5328929A | 1978-03-17 |
Attorney, Agent or Firm:
Shinichi Ogawa
Previous Patent: JPS58101995
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