Inventor
ZELLWEGER CONRAD
CH13 patents
⚠️ This page may combine multiple inventors who share the name “ZELLWEGER CONRAD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NATIONALE SA
6 patentsUS5018242AMay 28, 1991
Spring-action hinge for spectacle frame
NATIONALE SA43 citations86
US4244081AJan 13, 1981
Hinge for spectacles
NATIONALE SA24 citations80
US4467834AAug 28, 1984
Device for controlling the mixture and flow of at least two fluids
NATIONALE SA17 citations73
US4102633AJul 25, 1978
Cigarette lighter
NATIONALE SA14 citations70
US4859174AAug 22, 1989
Device for igniting combustible materials
NATIONALE SA18 citations69
US4222148ASep 16, 1980
Spectacle hinge
NATIONALE SA13 citations66