Richard Hirschhorn

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Harrison, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Metal curb installation system and method
- Patent number 6,695,525
- Issue date Feb 24, 2004
- Richard Hirschhorn
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Bolted steel staircase
- Patent number 4,899,504
- Issue date Feb 13, 1990
- Richard S. Hirschhorn
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
Metal curb installation system and method
- Publication number 20020122697
- Publication date Sep 5, 2002
- Richard Hirschhorn
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES