Heywood J. Knighton deceased

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late of Grosse Pointe Park, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Manifold inputs and outputs for furnace regenerators
- Patent number RE33814
- Issue date Feb 4, 1992
- Toledo Engineering Co., Inc.
- Robert O. Bradley
- 432 - Heating
Information Patent Grant
Manifold inputs and outputs for furnace regenerators
- Patent number 4,174,948
- Issue date Nov 20, 1979
- Toledo Engineering Company
- Robert O. Bradley
- F27 - FURNACES KILNS OVENS RETORTS