John A. Du Plessis

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Johannesburg, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Process for treating ion exchange resin
- Patent number 5,269,936
- Issue date Dec 14, 1993
- Johannesburg Consolidated Investment Co.
- Heinz W. Gussmann
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL