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 |
| 7230393 | Motor control apparatus and motor control method In response to detection of a skid of drive wheels based on an increase in angular acceleration α of a rotating shaft of a motor, the control procedure of the invention refers to a map representing a variation in maximum torque Tmax against the angular acceleration... | 06/12/2007 |
| 7218070 | System and method for braking a motor of a propulsion unit The present invention relates to a propeller drive arrangement for vessels used in water-borne traffic, and specifically to a propeller drive arrangement containing a propulsion unit, and to such an arrangement, which contains a propulsion unit, which is turnable re... | 05/15/2007 |
| 6882120 | Power device for vehicle sliding door A clutch includes a moving gear member 65 being rotated integrally with a wheel at all times and engaged with a fixed gear member 69 when it is moved in a first direction and disengaged from the fixed gear member when it is moved in a second direction,... | 04/19/2005 |
| 6316900 | Single shaft type table feed device A single shaft type table feed device comprises a movable body and an auxiliary movable body 34. The movable body is supported by a guide rail 31 and can be freely moved by a feed screw shaft 35 in the axial direction thereof. The auxiliary movable body 3... | 11/13/2001 |
| 4698560 | Adjusting device, especially for locking and unlocking motor vehicle doors In vehicular electric door lock arrangement the running time of a first adjusting unit is longer than the worst possible running times of the other adjusting units. The first adjusting unit operates a switching unit via which the running time of the other... | 10/06/1987 |
| 4489256 | Primary and secondary dynamic braking system A dynamic braking system is provided for electrically driven wheelchairs to slow the wheelchairs to a stop without needing to use a mechanical brake. A primary switch arrangement is provided for connecting resistors across the right and left wheelchair mo... | 12/18/1984 |
| 4296361 | Control systems A motor control system for a pair of motors which drive respective wheels of a vehicle which is steered by controlling the relative speed of the motors includes switch means, and a pair of resistors which are connected in a series circuit including the mo... | 10/20/1981 |
| 4096417 | Apparatus for driving and tensioning a printing ribbon for a printer A ribbon driving and tensioning apparatus includes a pair of identical mechanical assemblies connected to reversibly drive associated rollers which support a printing ribbon. Each assembly includes a bi-directional DC reduction motor the output shaft of w... | 06/20/1978 |
| 4072879 | Turn-off interlock for tape and film machines An interlock circuit is provided for tape and film machines which, when the high speed forward or reverse motors are in operation, prevents the main power from being turned off even though the operator might actuate the power switch. Instead of the power ... | 02/07/1978 |
| 4017774 | Bottle labeling system A method for coordinating the rate of processing of a container at a processing station with the rate of feed of said container to and removal from said processing station, comprising selecting a predetermined rate for said processing and said feed and re... | 04/12/1977 |