GF

Gerd Finnern

Overall (All Time): #1,300,164 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5044086 Drum screw with measuring drum for a sextant — 1991-09-03
5031327 Apparatus for fine adjustment of a sextant — 1991-07-16
4972592 Sextant with adjustable handle — 1990-11-27
4958927 Optical angle measuring instrument — 1990-09-25