https://cy.neppump.com/news/a-permanent-magnet-non-leakage-cryogenic-pump-from-nep-has-obtained-a-u-s-invention-patent/
Newyddion - Mae pwmp cryogenig magnet parhaol nad yw'n gollwng o NEP wedi cael patent dyfais yr...
Recently, NEP received an invention patent certificate issued by the United States Patent and Trademark Office. The patent name is a permanent magnet...
newyddionmaepwmpmagnetparhaol