Paul Efron

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Tucson, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Remote control system for evaporative coolers
- Patent number 6,357,243
- Issue date Mar 19, 2002
- Paul Efron
- G05 - CONTROLLING REGULATING
Information Patent Grant
Electronic evaporative cooler controller
- Patent number 5,031,412
- Issue date Jul 16, 1991
- Paul Efron
- F24 - HEATING RANGES VENTILATING