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Patents for William H. Beck | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 247,558 | Sep. 27, 1881 | J.G. Groff | Circular-saw guard | |
![]() | 264,149 | Sep. 12, 1882 | J.G. Groff | Guard for circular saws | |
![]() | 337,493 | Mar. 09, 1886 | I.E. Hall | Guard for cutter-heads |