JK

Johannes W. M. Keijser

📍 Helmond, NL: #1 of 8 inventorsTop 15%
Overall (1997): #35,408 of 185,788Top 20%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5692253 Hoist for lifting a patient Jan Abraham Ridder 1997-12-02
D379004 Cabinet for electronic equipment Jacobus J. Crebolder meergenaamd Krijbolder 1997-04-29