Assignee
KIDO TECH INST CO LTD
JP·2 granted patents·131 citations·filing 1989–1992
Top patents by PatentIndex Score
2 records- 0187US5169264APropulsion process of buried pipeKIDO TECH INST CO LTD·Filed 1992·Granted Dec 8, 1992·114 cites·2 claims
- 0252US4936709AMethod and apparatus for laying pipes in the ground with advance of propulsion shafts installed with pipe-supporting attachmentsKIDO TECH INST CO LTD·Filed 1989·Granted Jun 26, 1990·17 cites·10 claims
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