PS

Peter Spiess

IA Inventio Ag: 3 patents #1 of 42Top 3%
Overall (1997): #12,230 of 185,788Top 7%
3
Patents 1997

Issued Patents 1997

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5667039 Rollers for the roller guide of sliding elevator doors — 1997-09-16
5655626 Roller guide for a sliding elevator door — 1997-08-12
5616895 Door safety circuit for monitoring of story doors in lift installations — 1997-04-01