Roger A. Frost

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Uttoxeter, GB

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Patents Grantslast 30 patents

Information Patent Grant
Four wheel steering vehicle with valve position retaining means
- Patent number 5,139,105
- Issue date Aug 18, 1992
- J.C. Bamford Excavators Limited
- Roger A. Frost
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Materials handling vehicle
- Patent number 4,917,204
- Issue date Apr 17, 1990
- J.C. Bamford Excavators Limited
- Robert J. Andrew
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS