PP

Pekka Perjo

📍 Helsinki, FI: #1,108 of 3,940 inventorsTop 30%
Overall (All Time): #1,686,192 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D255667 Push button for an elevator — 1980-07-01
D255105 Up and down directional signal for an elevator — 1980-05-27
D254484 Up and down directional signal for an elevator — 1980-03-18