Robert John Harrison

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South Petherton, GB

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Patents Grantslast 30 patents

Information Patent Grant
Aerofoil
- Patent number 5,992,793
- Issue date Nov 30, 1999
- GKN Westland Helicopters Limited
- Frederick John Perry
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Propeller
- Patent number 5,927,948
- Issue date Jul 27, 1999
- GKN Westland Helicopters Limited
- Frederick John Perry
- B64 - AIRCRAFT AVIATION COSMONAUTICS