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William S. Weiss
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Glastonbury, CT, US
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Patents Grants
last 30 patents
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Patent Grant
Passenger conveyor handrail with sliding material on toothed driven...
Patent number
7,562,759
Issue date
Jul 21, 2009
Otis Elevator Company
Changsheng Guo
B66 - HOISTING LIFTING HAULING
Patents Applications
last 30 patents
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Patent Application
Passenger Conveyor Handrail With Sliding Material on Toothed Driven...
Publication number
20080190733
Publication date
Aug 14, 2008
Changsheng Guo
B66 - HOISTING LIFTING HAULING