T. Ian Bradshaw

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Afton, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Patterned pavement markings with upright retroreflectors
- Patent number 5,683,746
- Issue date Nov 4, 1997
- Minnesota Mining and Manufacturing Company
- Thomas P. Hedblom
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Patterned pavement markings with upright retroreflectors
- Patent number 5,670,227
- Issue date Sep 23, 1997
- Minnesota Mining and Manufacturing Company
- Thomas P. Hedblom
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES