Inventor

OOKA SINKITI

JP2 patents

Patents

2 patents

US5035539AJul 30, 1991

Liner for pipeline repair and method for repairing pipelines

TOA GROUT KOGYO CO46 citations87

US5224742AJul 6, 1993

Method for cutting off water in pipeline and structure of connection portion in pipeline

TOA GROUT KOGYO CO15 citations69