Nils Tvengsberg

📍 Oslo, NO: #1,297 of 2,623 inventorsTop 50%

Overall (All Time): #3,968,213 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4642822	Recreational pool	—	1987-02-17