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| All Patents in class 134/83 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,944,798 | Jan. 23, 1934 | W. Mellor | Means for Quenching Steels | ||
| 3,122,235 | Feb. 25, 1964 | D.E. Vandeveer, G.B. Fox, D.A. Meeker | Conveyor structure for a dishwasher | ||