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| All Patents in class 83/577 | |||||
| Number | Date | Patentee | Title | Type | |
| 1,948,229 | Feb. 20, 1934 | W.H. Young | Scroll saw | scrollsaws | |
| 2,047,322 | Jul. 14, 1936 | R.T. Hazelton | Shears for Sheet Metal | metal shearing machines | |
| 2,072,590 | Mar. 02, 1937 | O.M. Rybolt, J.C. Lowry | Jigsaw | scrollsaws | |