...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 |
| 7654117 | Sheer hosiery Sheer hosiery (200) is provided that maintains the appearance of conventional sheer hosiery while eliminating the foot discomfort that is typically encountered when wearing conventional sheer hosiery. Embodiments of the sheer hosiery (200) include a sh... | 02/02/2010 |
| 4604877 | Needle selection device for knitting machines The present unitary needle selection device is operable to selectively position the knitting needles of a circular knitting machine in either knit, tuck or welt positions. The needle selection device includes a pair of side-by-side stacks of selector slid... | 08/12/1986 |
| 4242890 | Striping box with more than one yarn finger activated at a time During at least one complete rotation of the needle cylinder of a circular knitting machine, more than one yarn-carrying finger is kept activated at at least one of the machine's striping boxes. Each striping box includes an indexed control drum having ax... | 01/06/1981 |
| 4147042 | Selection mechanism of circular knitting-machine Mechanism for selecting and controlling needles of circular knitting machine wherein, at each feed of the knitting machine, there is provided a cam path in which is engageable an outwardly projecting butt on an axially reciprocable needle to reciprocate t... | 04/03/1979 |
| 4107954 | Circular knitting machine provided with a novel striping box A circular knitting machine has a rotating needle cylinder provided with cylinder needles disposed about the periphery of the cylinder and a plurality of yarn feeding stations at least some of which are provided with striping boxes. Each striping box has ... | 08/22/1978 |