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| All Patents in class 72/214 | |||||
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| Number | Date | Patentee | Title | Type | |
| 22,842 | Feb. 01, 1859 | M.D. Whipple | Machine for cutting files | making files | |
| 2,254,289 | Sep. 02, 1941 | J. Jensen | Sheet Metal Working Machine | sheet metal flanging machines | |
| 2,352,009 | Jun. 20, 1944 | V.E. Robbins | Metalworking Device | sheet metal bending machines | |
| 2,991,673 | Jul. 11, 1961 | A.F. van Rooij | Device for grooving superfinished steel shafts | metal lathe accessories and attachments | |