John Steele

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Fife, GB

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Patents Grantslast 30 patents

Information Patent Grant
Ball valves for pipelines
- Patent number 4,953,587
- Issue date Sep 4, 1990
- T K Valve Limited
- John Steele
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Ball valves for pipelines
- Patent number 4,928,921
- Issue date May 29, 1990
- T K Valve Limited
- John Steele
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...