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Yasushi Nakashin

Overall (All Time): #2,361,027 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4370113 Apparatus for repairing leaks in underground pipe — 1983-01-25
4244895 Leak repairing process for underground pipe — 1981-01-13