Franz Kappeler

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Urdorf, CH

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Patents Grantslast 30 patents

Information Patent Grant
Acoustical seal for elevator car doors
- Patent number 5,083,639
- Issue date Jan 28, 1992
- Inventio AG
- Franz Kappeler
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Apparatus for ventilating the interior of high speed elevator cars
- Patent number 5,080,003
- Issue date Jan 14, 1992
- Inventio AG
- Franz Kappeler
- B66 - HOISTING LIFTING HAULING