JJ

Johannes H. M. Johanns

U.S. Philips: 2 patents #2,537 of 8,851Top 30%
Overall (All Time): #2,366,648 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4331904 Color television display tube Arnoldus H. M. Van Eck 1982-05-25
4291251 Color display tube Jan Bijma, Helmut Joeres 1981-09-22