WR

Walter J. R. de Rop

U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #4,108,889 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4195253 Method of ageing a gas discharge lamp Peter C. Drop, Robert L. M. E. Maes 1980-03-25