Douglas E. Riddler

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Bristol, GB

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Patents Grantslast 30 patents

Information Patent Grant
Change-speed gearboxes
- Patent number 4,173,905
- Issue date Nov 13, 1979
- Masson Scott Thrissell Engineering, Ltd.
- Graham A. B. Byrt
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...