Walter Guslawski

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Bronz, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Elevator entrance door sill pivotable into and out of elevator shaf...
- Patent number 7,788,854
- Issue date Sep 7, 2010
- Harold S. Friedman
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
Elevator entrance sill structure and installation method
- Publication number 20060054419
- Publication date Mar 16, 2006
- Harold S. Friedman
- B66 - HOISTING LIFTING HAULING