Norman L. Stewart Jr.

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Lake Alfred, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Oxidation-reduction process for enhancing the color of and stabiliz...
- Patent number 4,808,391
- Issue date Feb 28, 1989
- Farmland Industries, Inc.
- David D. Leavitt
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of lowering the magnesium impurity level of wet-process phos...
- Patent number 4,557,748
- Issue date Dec 10, 1985
- Farmland Industries, Inc.
- Norman L. Stewart
- C05 - FERTILISERS MANUFACTURE THEREOF