"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 4754584 | Modular security cell A security cell is adapted for expedient assembly in existing walled buildings and is primarily constructed of substantially identical wall and ceiling panels that are assembled adjacent existing walls and windows with connectors that are unexposed and in... | 07/05/1988 |