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| All Patents in class 73/78 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,280,538 | Oct. 01, 1918 | R. Poliskoff | Milling Machine Dynamometer | milling machine accessories | |
| 2,228,902 | Jan. 14, 1941 | A. Allen | Automatically Controlled Machine Tool and Follow-Up System | metalworking machine mechanisms | |
| 3,485,091 | Dec. 23, 1969 | S. Kornblau | Durometer | durometers | |