Daniel L. Grinols

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Eagan, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Indirect-fired heater with regeneration reclaim rotary heat exchanges
- Patent number 5,941,233
- Issue date Aug 24, 1999
- Rupp Industries, Inc.
- Daniel L. Grinols
- F24 - HEATING RANGES VENTILATING