Gregory S. Welsh

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Vernon, CT, US

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Patents Applicationslast 30 patents

Information Patent Application
HOISTWAY SHEAVE RESURFACING
- Publication number 20110318497
- Publication date Dec 29, 2011
- Otis Elevator Company
- James T. Beals
- B66 - HOISTING LIFTING HAULING
Information Patent Application
WEAR AND FRICTION CONTROL OF METAL ROPE AND SHEAVE INTERFACES
- Publication number 20110259676
- Publication date Oct 27, 2011
- Otis Elevator Company
- Aaron T. Nardi
- B66 - HOISTING LIFTING HAULING