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| All Patents in class 432/229 | |||||
| Number | Date | Patentee | Title | Type | |
| 39,357 | Jul. 28, 1863 | S.G. Reed | Wagon Tire Heater | tire heaters | |
| 2,346,923 | Apr. 18, 1944 | T.A. Waltz, A. Kullman | Apparatus for Flame Hardening Racks and the Like | heat treating machines | |