Frans Pieter Drijver

SM Single Buoy Moorings: 1 patents #1 of 2Top 50%

📍 Boulogne-sur-Mer, FR: #1 of 3 inventorsTop 35%

Overall (1997): #152,780 of 185,788Top 85%

Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5630591	Sealing element	Leendert Poldervaart	1997-05-20