YW

Ytsen Wielstra

U.S. Philips: 1 patents #139 of 781Top 20%
Overall (1997): #54,786 of 185,788Top 30%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5694001 Picture display device provided with an automatic selectively transmissive coating 1997-12-02