FB

Frederik J. Boelens

BD Bv Optische Industrie "De Oude Delft": 1 patents #1 of 11Top 10%
📍 Delft, NL: #342 of 1,192 inventorsTop 30%
Overall (All Time): #2,305,085 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5257305 Slit radiography device provided with absorption elements, and procedure for producing absorption elements Hendrik J. van Elburg, Gijsbertus G. Nouwen 1993-10-26
5134642 Slit radiography device provided with absorption elements, and procedure for producing absorption elements Hendrik J. van Elburg, Gijsbertus G. Nouwen 1992-07-28