Celebrity Inventors
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 |
| 5091157 | Recycle conduit insulation assembly A recycle conduit insulation assembly for use with a helical recycle conduit of a rotary reactor of the type having a rotating, horizontally-oriented, cylindrical chamber for burning materials therein and a quantity of particulate, inorganic material with... | 02/25/1992 |
| 5040973 | Rotary reactor and lifter assembly A rotary reactor of the type having a cylindrical, horizontally-oriented chamber lined with a refractory for burning materials therein and a plurality of trough-like lifters, extending along the interior surface of the chamber, for lifting and dumping san... | 08/20/1991 |
