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 |
| D600942 | Roll top touch medium | 09/29/2009 |
| D594247 | Beverage cabinet | 06/16/2009 |
| D593770 | Roll top touch regular | 06/09/2009 |
| D593771 | Beauty salon cabinet | 06/09/2009 |
| D568629 | Furniture | 05/13/2008 |
| D562586 | Set of storage units | 02/26/2008 |
