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Patents for Alvin L. Smith | |||||
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Number | Title | Classification(s) | |||
2,422,121 | Fluid pressure operated brake and adjustment therefor | 188/152, 188/250C, 188/365, 188/79.57 | |||
2,705,981 | Machine for joining wood | 144/246.1, 144/3.1, 144/4.2 |