FJ

Fred Johannsen

AA Aeg Olympia Aktiengesellschaft: 1 patents #6 of 17Top 40%
OG Olympia Group: 1 patents #8 of 35Top 25%
📍 Varel, DE: #9 of 30 inventorsTop 30%
Overall (All Time): #2,317,504 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5028514 Method of producing an etched base plate for an ink print head — 1991-07-02
4897903 Method of providing an ink jet printing head with piezo-crystals — 1990-02-06