Mark S. Granger

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Worthington, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Sign post with stress-defined breakaway splice
- Patent number 5,887,842
- Issue date Mar 30, 1999
- Mark S. Granger
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Sign post with breakaway splice
- Patent number 5,794,910
- Issue date Aug 18, 1998
- Mark S. Granger
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Safety sign post with breakaway connection
- Patent number 5,125,194
- Issue date Jun 30, 1992
- Marion Steel Company
- Mark S. Granger
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES