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| Patents for Frederick A. Barnes | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,412,957 | Dec. 24, 1946 | F.A. Barnes | Machine tool control | milling machine accessories | |
| CA-439,005 | Jan. 07, 1947 | F.A. Barnes | Machine tool control system | milling machine accessories | |
| 2,436,373 | Feb. 24, 1948 | F.A. Barnes | Machine tool control | milling machine accessories | |
| 2,486,097 | Oct. 25, 1949 | F.A. Barnes | Control system | milling machine accessories | |
| CA-463,393 | Feb. 28, 1950 | F.A. Barnes | Control system | milling machine accessories | |