Douglas N. Berger

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Kennewick, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Valveless continuous atmospherically isolated container feeding ass...
- Patent number 6,371,711
- Issue date Apr 16, 2002
- Integrated Environmental Technologies, LLC
- Douglas N. Berger
- F27 - FURNACES KILNS OVENS RETORTS