| All Patents in class 72/214 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 22,842 | Feb. 01, 1859 | M.D. Whipple | Machine for cutting files | making files |
| 609,265 | Aug. 16, 1898 | W.A. Clark | Upsetting-machine for plowshares | upsetting machines |
| 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 |
