"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 7619181 | Heating system for bathing unit A control system suitable for use with a bathing unit system having a water receptacle is provided. The control system comprises a heating module, a power source and a controller in communication with the heating module and the power source. The power source include... | 11/17/2009 |
| 7419406 | Bathing unit controller A controller suitable for use in controlling components in a bathing unit is provided. The controller includes a controller body having a back surface and a front surface generally opposed to the back surface. The front surface includes a plurality of connector inte... | 09/02/2008 |