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| All Patents in class 236/34.5 | |||||
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| Number | Date | Patentee | Title | Type | |
| 14,160 | Jan. 29, 1856 | H. Knowles | Mortising tool | mortising machines | |
| 1,791,572 | Feb. 10, 1931 | I. Ornberg | Cooling System for Internal Combustion Engines | engine thermostats | |