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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 6883758 | Reed relay for remote magnetic operation of model trains An apparatus for performing a function on a model train car on a track includes an electrically operated mechanism mounted on the car for performing a function on the car. A reed switch is operatively connected to the mechanism for activating the mechanism. The reed... | 04/26/2005 |
| 6393344 | Interference current monitoring Interference currents in railway trackside signaling apparatus are monitored by first and second transducers adapted to measure the traction current and frequency, respectively, of power electronics in traction systems of railway vehicles. An instantaneou... | 05/21/2002 |
| 6059237 | Interactive toy train A toy train system has movable and removable trigger devices to be located by a user wherever selected on the toy train track. The train locomotive includes the ability to activate a sound and a light signal which can correspond to the sound. The train lo... | 05/09/2000 |
| 5415369 | Railroad in-cab signaling with automatic train stop enforcement utilizing radio frequency digital transmissions A railroad in-cab signaling system which includes transceivers disposed at signals where various transceivers are operating on different frequencies and addresses so as to provide for easy identification and highly secure communication to the signal trans... | 05/16/1995 |
| 5174216 | Digital sound reproducing system for toy trains with stored digitized sounds recalled upon trackside triggering A digital sound reproducing system which produces a plurality of sound effects from digital data stored at predetermined addresses in a digital sound memory. A controller connected to the digital sound memory causes recall of a sound data from a predeterm... | 12/29/1992 |
| 4639874 | System for monitoring and controlling position of hoists Disclosed is a system for monitoring and controlling movement of a hoist along a line of treatment tanks of an electroplating apparatus. Hoist-mounted optical sensing units of the system have pickups formed of opposed lines of infrared emitting diodes and... | 01/27/1987 |
| 4196287 | Process for the catalytic production of 2-substituted pyridines A process for the catalytic production of a 2-substituted pyridine which comprises reacting a corresponding cyano compound and acetylene in the presence of cobaltocene. Favorable conversion speed, conversion of at least 90 percent, good yield and high sel... | 04/01/1980 |
