"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 4912878 | Combined displacing and cushioning means for detention cell doors A mounting assembly is provided for a jail cell door. The door is suspended from a trolley and is slidable, on a fixed rail, between fully open and closed positions. Means are provided for releasably locking the door in either of those positions. Stop mea... | 04/03/1990 |
| 4872284 | Cell block security systems A security system for detention cells is described. Known means are provided or lock to unlock the doors of all cells in a cell block. In combination with these means the present invention provides improved means for selectively unlocking the doors for in... | 10/10/1989 |