William F. Crowell

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Sikeston, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for reducing excess air inleakage into an open...
- Patent number 4,382,778
- Issue date May 10, 1983
- Noranda Mines Limited
- John G. Peacey
- F27 - FURNACES KILNS OVENS RETORTS