Jean L. Randon

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Cournonterral, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process for the manufacture of gate valves for closure devices havi...
- Patent number 4,248,815
- Issue date Feb 3, 1981
- Kaiser Electro Refractaire France
- James B. Blackburn
- B22 - CASTING POWDER METALLURGY