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All Patents in class 417/82 | |||||
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Picture | Number | Date | Patentee | Title | |
2,632,392 | Mar. 24, 1953 | W.H. Tinker | Pumping Apparatus | ||
2,632,393 | Mar. 24, 1953 | W.H. Tinker | Pumping Apparatus | ||
2,660,953 | Dec. 01, 1953 | H.C. Weber, W.H. Tinker | Fluid Pump Assembly |