Robert L. Kerr

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Poland, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Roof assembly for an electric arc furnace
- Patent number 4,644,558
- Issue date Feb 17, 1987
- Wean United, Inc.
- Robert L. Kerr
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Roof assembly for an electric arc furnace
- Patent number 4,638,492
- Issue date Jan 20, 1987
- Wean United, Inc.
- Robert L. Kerr
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Roof assembly for an electric arc furnace
- Patent number 4,553,245
- Issue date Nov 12, 1985
- Wean United, Inc.
- Robert L. Kerr
- F27 - FURNACES KILNS OVENS RETORTS