SA

Stig B. Ahlgren

Overall (All Time): #1,062,618 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
D299211 Toothed drive pulley — 1989-01-03
4676767 Driving device for signs — 1987-06-30
D281336 Rotatable display element for changeable message sign — 1985-11-12
4528763 Sign having changeable displays — 1985-07-16
4189859 Device at display arrangement — 1980-02-26