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| Patents for Northfield Foundry & Machine Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,588,972 | Jun. 15, 1926 | M. Machacek | Hydraulic feeding mechanism for mortising machines | mortising machines | |
| 2,231,080 | Feb. 11, 1941 | M. Machacek | Band saw table | bandsaws | |
| 3,151,420 | Oct. 06, 1964 | G.J. Machacek, Jr. | Machine for grinding knives | sharpening machines | |