Title:
LEAKAGE REPAIR METHOD OF PIPES LAID UNDERGROUND
Document Type and Number:
Japanese Patent JPS54142621
Kind Code:
A
Inventors:
NAKASHIN YASUSHI
Application Number:
JP4978078A
Publication Date:
November 07, 1979
Filing Date:
April 28, 1978
Export Citation:
Assignee:
NAKASHIN YASUSHI
International Classes:
F16L55/16; F16L55/10; (IPC1-7): F16L55/10; F16L55/16
Domestic Patent References:
| JPS5447767A | 1979-04-14 |