Richard T. Sewald, Sr.

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Bethlehem, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for removal and detoxication of dissolved metals in a rainwa...
- Patent number 7,037,423
- Issue date May 2, 2006
- ISG Technologies Inc.
- Stewart T. Herman
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE