| Patents for Hardinge Brothers, Inc. |
Patents 16 -
30
of 31
      |
| Number | Date | Patentee | Title | Type |
| 1,626,116 | Apr. 26, 1927 | F. Hardinge | Oil burner | industrial furnaces |
| 1,633,793 | Jun. 28, 1927 | F. Porst | Gear pump | |
| 1,674,247 | Jun. 19, 1928 | F. Hardinge | Oil burner | industrial furnaces |
| 1,707,761 | Apr. 02, 1929 | F. Hardinge, B.H. Connor | Oil burner | industrial furnaces |
| 1,709,233 | Apr. 16, 1929 | O.C. Schroeder | Mechanical movement | metal lathe accessories and attachments |
| 1,735,245 | Nov. 12, 1929 | F. Hardinge | Oil burner | industrial furnaces |
| 1,739,548 | Dec. 17, 1929 | F. Hardinge | Oil burner | industrial furnaces |
| 1,747,365 | Feb. 18, 1930 | F. Hardinge | Oil burner | industrial furnaces |
| 1,748,416 | Feb. 25, 1930 | F. Hardinge | Oil burner | industrial furnaces |
| 1,789,601 | Jan. 20, 1931 | K.R. Sjogren | Chuck | metal lathe chucks |
| 1,792,222 | Feb. 10, 1931 | H.H. Hardinge | Oil burner | industrial furnaces |
| 2,066,560 | Jan. 05, 1937 | L.R. Evans | Variable speed drive mechanism | metal lathes |
| 2,187,170 | Jan. 16, 1940 | J.R. O'Connell | Feed chuck | metal lathe chucks |
| 2,221,734 | Nov. 12, 1940 | L.R. Evans | Means for feeding work in automatic screw machines | screwcutting lathes |
| 2,293,176 | Aug. 18, 1942 | K.R. Sjogren | Collet chuck construction | metal lathe chucks |
