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Lord Kelvin, British mathematician and physicist ; 1897
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| Application No. | Application Title | Issue Date |
| 20100195991 | APPARATUS AND CONTROL METHOD FOR A HYBRID TANKLESS WATER HEATER An on demand tankless water heater system that is capable of quickly delivering water within a desired temperature range. The tankless water heater provides a hybrid heating method that contains a primary heating system and a secondary heating system disposed in a buffe... | 08/05/2010 |