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 |
| 5396939 | Stave machine and method of stave manufacture A machine for making staves includes a first section and a second section with each section including components for cutting one side of a blank in a manner inclined to the blank's lengthwise axis. Conveyors on each section are equipped with lugs for prop... | 03/14/1995 |
