WL

Wilhelmus M. H. Louvenberg

U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #3,872,473 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5001688 Apparatus for playing record carriers using playing frequency ranking Henricus F. M. Van Kempen 1991-03-19