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 |
| 5393453 | Thickened composition containing glycolipid surfactant and polymeric thickener A thickened composition having a complex viscosity at 25° C. and at 1.58 Hz of about 0.1 to about 200 Pascal seconds, a G' value of about 0.1 to about 15000 dynes/sq cm over a strain range of 1 to 5% and a G" value of about 0.1 to about 2000 dynes/sq cm ... | 02/28/1995 |