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 |
| 5245918 | Pistachio nut hulling apparatus A pistachio huller provided wherein a means (16) having projections (18) pushes unhulled nuts between the surface of the means having projections and a surface of a means (30) having channels (28), the channels being wider than the pistachio nuts to be hu... | 09/21/1993 |
| 4448115 | Apparatus for hulling pistachio nuts A pistachio huller is provided wherein a means having projections pushes unhulled nuts between the surface of the means having projections and a surface of a means having slots, the slots being narrower than the pistachio nuts to be hulled. The projection... | 05/15/1984 |
| 4353931 | Method of hulling pistachio nuts A pistachio huller is provided wherein a means having projections pushes unhulled nuts between the surface of the means having projections and a surface of a means having slots, the slots being narrower than the pistachio nuts to be hulled. The projection... | 10/12/1982 |
