AN

Andre De Neergaard

ST Societe De Prospection Et D'Inventions Techniques—Spit: 2 patents #23 of 48Top 50%
📍 Tournon, FR: #2 of 7 inventorsTop 30%
Overall (All Time): #2,288,827 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D361252 Electric hammer Claude Ronjon 1995-08-15
4971494 Bolt for an anchoring hole with an undercut Alain Gauthier, Jean-Paul Barthomeue 1990-11-20