Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 3988691 | Power amplifier A power amplifier circuit including a low power output general purpose operational amplifier. The circuit provides an output voltage swing far greater in magnitude than the output voltage swing of the operational amplifier and with a faster response than ... | 10/26/1976 |
| 3955146 | Circuit for coupling an antenna to a load A circuit coupling an antenna to a load uses an integrated circuit differial amplifier with emitter feedback, a buffer amplifier and various adjusting networks to achieve constant output impedance independent of input loading over a wide range of frequen... | 05/04/1976 |
