Teijo Viljanen

OH Oy Helvar: 2 patents #1 of 1Top 100%

Overall (1997): #22,185 of 185,788Top 15%

Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5698950	Suppressor for an electronic ballast in a discharge lamp	—	1997-12-16
5691604	Method and circuit system for controlling a lighting electronics appliance	—	1997-11-25