RK

Robertus Adrianus Maria Keers

📍 Mijdrecht, NL: #10 of 27 inventorsTop 40%
Overall (All Time): #3,669,269 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5992813 Picture hanging system — 1999-11-30