Daniel L. Riffe

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Los Angeles, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Tripping and re-cocking mechanism and apparatus
- Patent number 7,181,992
- Issue date Feb 27, 2007
- Daniel L. Riffe
- G01 - MEASURING TESTING
Information Patent Grant
Tripping and re-cocking mechanism
- Patent number 7,127,960
- Issue date Oct 31, 2006
- Daniel L. Riffe
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for testing co-efficient of friction of a road surface
- Patent number 6,681,614
- Issue date Jan 27, 2004
- Daniel L. Riffe
- G01 - MEASURING TESTING