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All Patents in class 451/527 | |||||
Number | Date | Patentee | Title | Type | |
804,514 | Nov. 14, 1905 | O.C. Wysong | Abrasive apparatus | sanding machines | |
816,461 | Mar. 27, 1906 | G. Gorton | Clearance Space Grinding Disk | abrasive sheets | |
1,126,423 | Jan. 26, 1915 | C.H. Driver | Sandpaper belting | abrasives and holders | |
3,339,319 | Sep. 05, 1967 | H.W. Grivna, G.L. Schuster | Abrasive sleeve for rotary sanding machines | sanding machines |