EVGRAY Archive

Eugene Frenette / Eugene Perkins: Friction Heater (US Patent # 4,134,639, etc.)

1 messages · 2018-08-25T22:53:22+00:00 → 2018-08-25T22:53:22+00:00

[1/1] Eugene Frenette / Eugene Perkins: Friction Heater (US Patent # 4,134,639, etc.)

2018-08-25T22:53:22+00:00 · Norman Wootan <[email protected]>
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http://www.rexresearch.com/frenette/frenette.htm
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