| Patents for Salem Iron Works |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 108,135 | Oct. 11, 1870 | C.A. Hege | Improvement in cane-strippers | |
| 118,366 | Aug. 22, 1871 | C.A. Hege | Improvement in rotary steam-engines | rotary steam engines |
| 162,549 | Apr. 27, 1875 | C.A. Hege | Improvement in plows | |
| 196,577 | Oct. 30, 1877 | C.A. Hege | Improvement in head-blocks for saw-mills | sawmill headblocks |
| 222,902 | Dec. 23, 1879 | C.A. Hege | Improvement in brick-machines | brick and tile making machines |
| 243,556 | Jun. 28, 1881 | C.A. Hege | Saw-mill | circular sawmills |
| CA-15,212 | Jul. 31, 1882 | C.A. Hege | Improvement on saw mills | circular sawmills |
| 335,194 | Feb. 02, 1886 | C.A. Hege | Cotton-press | cotton presses |
| 512,819 | Jan. 16, 1894 | C.A. Hege | Machine for hulling coffee or for other purposes | clover hullers |
| 512,881 | Jan. 16, 1894 | C.A. Hege | Machine for hulling coffee or for other purposes | clover hullers |
| 548,054 | Oct. 15, 1895 | C.A. Hege | Machine for hulling coffee, &c. | clover hullers |
| 680,588 | Aug. 13, 1901 | C.A. Hege | Machine for hulling coffee, &c. | clover hullers |
| 681,218 | Aug. 27, 1901 | C.A. Hege | Machine for cutting cross-ties | railroad machines |
| 715,477 | Dec. 09, 1902 | C.A. Hege | Machine for cutting cross-ties | railroad machines |
| 792,263 | Jun. 13, 1905 | C.A. Hege, C.R. Traxler | Machine for cutting railroad-ties | railroad machines |
