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| All Patents in class 30/513 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,102,782 | Dec. 21, 1937 | G.J. Blum | Hacksaw | power hacksaws | |
| 2,221,231 | Nov. 12, 1940 | F.A. Cassidy | Hack Saw Frame | hacksaws | |
| 2,516,079 | Jul. 18, 1950 | W.H. Shortell | Tensioning device for hacksaw blades | metal sawing machines | |
| 2,546,660 | Mar. 27, 1951 | G.R. Wilcox | Hacksaw frame | hacksaws | |
| 2,721,587 | Oct. 25, 1955 | A.J. Dremel | Bench jig saw | scrollsaws | |