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| All Patents in class 29/824 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,999,657 | Apr. 30, 1935 | W.C. Heath | Conveyer for Production Lines | conveyors and hoppers | |
| 5,177,862 | Jan. 12, 1993 | J.R. Spece | Automatic Assembly System | assembling machines | |