HR

Henricus H. Roelofs

U.S. Philips: 2 patents #2,537 of 8,851Top 30%
Overall (All Time): #2,251,052 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5926365 Device for the exchange of information with an electronic memory card, and car radio provided with such a device Jacobus M. C. Verhoeven 1999-07-20
5471018 Audio or video apparatus with a built-in loudspeaker Joris A. M. Nieuwendijk, Johannes W. T. Bax, Cornelis J. Oepkes, Martinus P. M. Van Den Thillart 1995-11-28