Donald P. Hoover

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Lansdale, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Calciner screw construction
- Patent number 4,430,057
- Issue date Feb 7, 1984
- Selas Corporation of America
- Donald P. Hoover
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL