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| All Patents in class 248/422 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 107,346 | Sep. 13, 1870 | C.H. Douglas | Improvement in saw-tables | |
 | 784,050 | Mar. 07, 1905 | J.W. Johnston | School-desk | |
 | 981,113 | Jan. 10, 1911 | A.W. Richards | Work Bench | |