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| All Patents in class 403/281 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 503,804 | Aug. 22, 1893 | R.E. Poindexter | Post-base | ||
| 654,943 | Jul. 31, 1900 | E. Butler | Handle Fastening | ||
| 1,429,500 | Sep. 19, 1922 | P.N. Frease | Tool Holder | ||
| 3,452,633 | Jul. 01, 1969 | E.J. Hammon | Die set shank construction | ||