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 |
| 5907960 | Closed toe method on a single-cylinder knitting machine Method for manufacturing a tubular hosiery item with a closed end, with a single-cylinder circular knitting machine having a pivoting semicircular plate having radially sliding hooks, including alternately rotating the needle cylinder for moving the needl... | 06/01/1999 |
| 5816075 | Single-cylinder circular hosiery machine with pivotable dial sections A single-cylinder circular hosiery-making or knitting machine particularly for manufacturing tubular items closed at one of their axial ends, having a needle cylinder and a circular plate which coaxially faces the needle cylinder in an upward region. The ... | 10/06/1998 |
