WL

Wynand J. Louw

SD South African Inventions Development: 1 patents #14 of 48Top 30%
Overall (All Time): #4,119,495 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4221980 Electrical switching means Douw Gerbrandt Van Der Merwe, Carel J. F. Coetzee 1980-09-09