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| Patents for Conchemco, Inc. | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,735,120 | Apr. 05, 1988 | A.F. Beugelsdyk | Ratcheting Tool Driver &c. | ratcheting screwdrivers | |
| 4,793,222 | Dec. 27, 1988 | A.F. Beugelsdyk | Ratcheting Tool Driver, &c. | ratcheting screwdrivers | |