RF

Roger A. Frost

JL J. C. Bamford Excavators Limited: 3 patents #52 of 224Top 25%
📍 Uttoxeter, GB: #31 of 102 inventorsTop 35%
Overall (All Time): #1,662,203 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5139105 Four wheel steering vehicle with valve position retaining means Robert J. Andrew, Simon Langford 1992-08-18
4917204 Materials handling vehicle Robert J. Andrew, Paul F. Herbert 1990-04-17
4669947 Earth moving implement 1987-06-02