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 |
| 7448294 | Robotic devices By moving supports A and C along respective tracks (3) and (4), the free end B of robot arm (2), with gripper (5), is caused to move along a path P, the locus of which may be varied by varying the movements of the supports A and C. Motors... | 11/11/2008 |
