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| All Patents in class 134/122R | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,944,798 | Jan. 23, 1934 | W. Mellor | Means for Quenching Steels | ||
| 3,038,587 | Jun. 12, 1962 | G.A. Bilocq | Log conveying apparatus | woodworking material handling machines | |