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 |
| 5323867 | Robot transport platform with multi-directional wheels A robot transport platform adapted for locomotion, having a base with three wheels on each side. Of the three wheels on each side, the wheels near the fore end and the aft end are omnidirectional wheels; the intermediate wheel in between the omnidirection... | 06/28/1994 |
| 5325201 | Pseudo-random number generator based on a video control counter An assembly of serially coupled XOR gates and an assembly of serially coupled shift register-XOR gate pairs are provided to a digital video system. The two assemblies are serially coupled to each other. The assembly of XOR gates generates a shift-in bit f... | 06/28/1994 |
| 5307456 | Integrated multi-media production and authoring system A network multi-media production and authoring system. A real-time network referred to as an "AV LAN" is defined. Coupled to the AV LAN are a number of shared multi-media production resource devices. These multi-media production resource devices include v... | 04/26/1994 |
| 5305438 | Video storage, processing, and distribution system using recording format independent hierarchical storages and processors A video image storage, processing, and distribution system is provided with a processing and a distribution subsystem. The processing subsystem comprises at least one high performance video signal input device, one recording format independent hierarchy o... | 04/19/1994 |
| 5285496 | Methods and apparatus for providing a secure paging system A paging system which sends and receives encrypted messages. The message may be encrypted either by the sender of the message or by the paging system. Multiple keys may be used for encrypting and decrypting. Public key systems may also be used and integra... | 02/08/1994 |
| 4587514 | Interface method and apparatus An interface apparatus utilizing data encoding/decoding methods having particular application for use in interfacing data processing and telecommunication equipment is disclosed. The interface apparatus includes an encoder for encoding inputted data for t... | 05/06/1986 |
| 4569144 | Handgun safety device A firing safety device for handguns is disclosed. The device prevents the accidental discharge of the gun by children and is easily removeable by adults thereby resulting in the gun being ready for use almost immediately. The device includes a rod which i... | 02/11/1986 |
| 4540283 | Apparatus and method for determining the size and velocity of particles, droplets, bubbles or the like using laser light scattering An apparatus and method for determining the size and velocity of particles, droplets, bubbles, or the like employing laser light scattering is disclosed. A laser generation means is provided for generating a pair of coherent laser beams. These beams are d... | 09/10/1985 |
| 4442325 | Switchable incremental attenuation for telephone line interface A self-contained switchable, incremental attenuator device for interposing in a two line power circuit to attenuate the power level for proper power matching. The device includes a series of modulized, individually switchable attenuator circuits of differ... | 04/10/1984 |
| 4439010 | Apparatus for combining optical images An apparatus for combining optical images which is particularly suited for use in integrated circuit lead wire gang bonding systems is disclosed. The apparatus includes an objective lens to gather and focus light rays reflected from an object, such as a m... | 03/27/1984 |