Suthaharan Velauthapillai

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South Strathfield, AU

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Patents Grantslast 30 patents

Information Patent Grant
Elevator car call buttons indicating car floor position
- Patent number 5,969,306
- Issue date Oct 19, 1999
- Otis Elevator Company
- Suthaharan Velauthapillai
- B66 - HOISTING LIFTING HAULING