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 |
| 7387079 | Automatic horn shutter A horn assembly is disclosed. The horn assembly includes a shutter than can cooperate with a horn valve. The shutter disposed on an end portion of the horn assembly can help seal the horn assembly and prevent moisture, rain or debris from entering the interior of th... | 06/17/2008 |
| 7234639 | Stored-value card with whistle A stored-value card includes a housing and at least one internal wall substantially enclosed within the housing. The housing includes an account identifier signifying a financial account or record linked to the stored-value card. The at least one internal wall is co... | 06/26/2007 |
| 6972697 | Controller for automatically manipulating a horn signal for navigational purposes A system and method for a horn controller is provided that automatically operates a vessel's horn as a foghorn. The horn controller automatically causes the vessel's horn to sound according to the proper foghorn sounding schedule. The horn controller is designed to ... | 12/06/2005 |
| 6945191 | Garage and vehicle protector Garage and vehicle protector disclosed mounts on a garage and has an indicator positioned inward from the left side of the door opening to guide a driver to correctly align a vehicle laterally when entering or exiting the garage. The protector has an adjustable supp... | 09/20/2005 |
| 5484969 | High-volume acoustic transducer A high-volume source for very low frequency applications in which conventional speakers are inadequate is disclosed. A presently preferred embodiment comprises a reservoir 32 with a pressure relief 33; a controller 34; a supply blower 36; an exhaust blowe... | 01/16/1996 |
| 4275723 | Warning device for breathing apparatus having a pressure gas supply A warning device for breathing apparatus which has a respiratory gas conduit through which respiratory gases are passed and which includes three interconnected chambers. Two of the chambers include diaphragm valves operable, responsive to pressure conditi... | 06/30/1981 |
| 4166428 | Intruder alarm An intruder alarm security device includes a source of fluid under pressure which serves as a medium for oscillating a diaphragm at the throat of a horn to create an audible warning signal. The intruder alarm includes an actuator, a plunger assembly and c... | 09/04/1979 |