JL

Jean-Jacques de Langavant

📍 Dorion, CA: #3 of 6 inventorsTop 50%
Overall (All Time): #3,722,986 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5660046 Cryogenic temperature control system Bernard de Langavant, Normand Masse 1997-08-26