FD

Franciscus M. Dreesen

U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #3,874,426 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5008591 X-ray image intensifier tube comprising a selective filter Johnny W. Van Der Velden, Theodorus F. van Bergen, August L. H. Simons, Johannes K. E. Colditz, Martinus A. C. Ligtenberg 1991-04-16