JR

Johan David Raal

📍 Clermont, ZA: #2 of 16 inventorsTop 15%
Overall (All Time): #1,616,353 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6394641 Preparation of standard gas mixtures — 2002-05-28
5996854 Liquid dispenser with coaxial piston and rod for dispensing a precise volume — 1999-12-07
5147612 Apparatus for preparation of standard gas mixtures — 1992-09-15