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| Patents for Joseph B. Armitage | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,988,965 | Jun. 20, 1961 | F. Zankl, G.G. Baumbach, T.A. Wetzel, J.B. Armitage | Spindle Construction and Dual Transmission Therefor | milling machines | |