Guy F. Hundy

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Gravesend, GB

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Patents Grantslast 30 patents

Information Patent Grant
Rotary screw machine with two intermeshing gate rotors and two inde...
- Patent number 4,261,691
- Issue date Apr 14, 1981
- Hall-Thermotank Products Limited
- Bernard Zimmern
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES