"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 5836940 | Photoacoustic drug delivery A method and apparatus for locally delivering an active agent to a selected site in a body lumen using a liquid core laser catheter having a flexible tube for insertion into the lumen, a conduit housed within the tube for coupling a flow of light transmis... | 11/17/1998 |
| 5826182 | Double balanced RF mixer with predetermined input impedance A mixer includes a doubly-balanced mixer core, an RF input section coupled to the mixer core, and a biasing circuit coupled to the RF input section. The RF input section includes a first transistor coupled to a first input of the mixer core for supplying ... | 10/20/1998 |
| 5703816 | Failed memory cell repair circuit of semiconductor memory In semiconductor memory devices, failed memory cells are problematic because they draw excessive standby currents. To repair such devices before packaging, the failed memory cell columns are replaced by redundant columns. To ensure that a replaced column ... | 12/30/1997 |
| 5702304 | Method and apparatus for operating networked gaming devices A system for monitoring and configuring gaming devices interconnected over a high-speed network is disclosed. The system can support a file server, one or more floor controllers, one or more pit terminals, and other terminals all interconnected over the n... | 12/30/1997 |
| 5586184 | Battery latch for cellular telephone A phone housing includes an attachment section for receiving a battery pack. A slot in the phone housing receives a latch made formed from a unitary piece of plastic. The latch inserts and locks inside the slot and is compressible inside the slot allowing... | 12/17/1996 |
| 5571464 | Method for forming concrete products A mold box is flexibly mounted to a product forming machine having upper and lower vertically displaceable beams. A feed drawer dispenses concrete material into the mold box while a vibration system vertically vibrates the mold box while dampening horizon... | 11/05/1996 |
| 5559873 | Telephone privacy device with conference and indicator features A simple and inexpensive telephone exclusion or privacy device. A conference feature is and am indicator light showing when the line is in use are also provided. The basic exclusion or privacy circuit includes only eleven components, thereby providing a v... | 09/24/1996 |
| 5549343 | Train tire profile A section of a train wheel tread is formed into a continuous hyperbolic curve to respond asymptotically to changes in the path of a rail, thus, dampening lateral oscillation of the train wheels back and forth across rail. The hyperbolic curve at a minimum... | 08/27/1996 |
| 5549330 | Quick release ski pole and strap system A quick release skip pole strap system includes a novel ski pole strap that attaches to a ski pole grip. A locking mechanism within the ski pole grip automatically engages with a strap pin. A button attached to a side of the ski pole grip, when depressed,... | 08/27/1996 |
| 5548222 | Method and apparatus for measuring attenuation and crosstalk in data and communication channels A termination control circuit is coupled to a far end of a cable. A modulated test signal is reflected back to a near end of the cable at a different frequency but at substantially the same level of attenuation as the test signal. Signal attenuation in th... | 08/20/1996 |
| 5544405 | Method for forming concrete products A mold box is flexibly mounted to a product forming machine having upper and lower vertically displaceable beams. A feed drawer dispenses concrete material into the mold box while a vibration system vertically vibrates the mold box while dampening horizon... | 08/13/1996 |
| 5540869 | Method for forming concrete products A mold box is flexibly mounted to a product forming machine having upper and lower vertically displaceable beams. A feed drawer dispenses concrete material into the mold box while a vibration system vertically vibrates the mold box while dampening horizon... | 07/30/1996 |