RR

Roel Ritsma

HN Holec Holland N.V.: 1 patents #6 of 8Top 75%
📍 Enschede, NL: #291 of 648 inventorsTop 45%
Overall (All Time): #3,541,312 of 4,157,543Top 90%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6373355 Switch with contacts which can be seen through a window Albert Postmus, Aloysius Hemmer 2002-04-16