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| Patents for Hubert Howson | |||||
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| Number | Date | Patentee | Title | Type | |
| 348,818 | Sep. 07, 1886 | J.G. Baker | Pipe and rod vise | pipe and chain vises | |
| 506,954 | Oct. 17, 1893 | J.G. Timolat, C. Jacobson | Portable drill | portable metal boring and drilling machines | |
| 659,088 | Oct. 02, 1900 | J.B. McKenzie | Cleaner for saws | bandsaw accessories | |