JS

Johan A. Sparenberg

SW Stichting Voor De Technische Wetenschappen: 1 patents #1 of 3Top 35%
📍 Paterswolde, NL: #1 of 1 inventorsTop 100%
Overall (1994): #42,404 of 165,921Top 30%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5312228 Ship's propeller Karel De Jong, Jacob De Vries 1994-05-17