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| All Patents in class 83/406 | |||||
| Number | Date | Patentee | Title | Type | |
| 497,768 | May 23, 1893 | R.B. Cole | Sawmill | circular sawmills | |
| 1,819,431 | Aug. 18, 1931 | C.D. McDonald | Apparatus for forming scroll-edge metal blanks | ||