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| Patents for Liberty Machine Tool Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,447,422 | Mar. 06, 1923 | A.R. McCann | Planer | metal planers | |
| 1,459,917 | Jun. 26, 1923 | A.R. McCann | Dial | metal planer accessories | |
| 1,467,182 | Sep. 04, 1923 | A.R. McCann | Clamp | metal planer accessories | |
| 1,483,901 | Feb. 19, 1924 | A.R. McCann | Variable Speed Drive | metal planers | |
| 1,681,408 | Aug. 21, 1928 | A.R. McCann, C.G. Johannesmeyer | Tool Holder for Metal Planers | metal planer tool holders | |