Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7356372 | Facilities management system with programmable logic control An embodiment of an access control system is disclosed herein that is easily customized by a user. A user defines cardholders, clearance levels, and logic scripts that dictate how the system will operate. User-entered changes propagate through the system automatical... | 04/08/2008 |
| 7340314 | Facilities management system with local display and user interface An embodiment of an access control system is disclosed herein that is easily customized by a user. A user defines cardholders, clearance levels, and logic scripts that dictate how the system will operate. User-entered changes propagate through the system automatical... | 03/04/2008 |
| 7136711 | Facilities management system An embodiment of an access control system is disclosed herein that is easily customized by a user. A user defines cardholders, clearance levels, and logic scripts that dictate how the system will operate. User-entered changes propagate through the system automatical... | 11/14/2006 |
| 7068164 | Facilities management system with server-independent enclosures An embodiment of an access control system is disclosed herein that is easily customized by a user. A user defines cardholders, clearance levels, and logic scripts that dictate how the system will operate. User-entered changes propagate through the system automatical... | 06/27/2006 |