Chung C. Lee

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Coraopolis, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Extensible and retractable chute
- Patent number 4,946,018
- Issue date Aug 7, 1990
- Dravo Wellman, Inc.
- Willard Binzen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL