| Patents for Irving W. Colburn |
Patents 1 -
10
of 15
      |
| Picture | Number | Date | Patentee | Title |
| | 243,214 | Jun. 21, 1881 | I.W. Colburn, H.J. Colburn | Acoustic telephone |
| | 372,012 | Oct. 25, 1887 | I.W. Colburn | Electrical resistance-board |
| | 568,429 | Sep. 29, 1896 | H.J. Colburn | Safe |
| | 620,567 | Mar. 07, 1899 | I.W. Colburn | Glass-working machine |
| | 620,568 | Mar. 07, 1899 | I.W. Colburn | Glass-working machine |
| | 620,642 | Mar. 07, 1899 | I.W. Colburn | Glass-working machine |
| | 621,794 | Mar. 28, 1899 | I.W. Colburn | Glass-working machine |
| | 621,795 | Mar. 28, 1899 | I.W. Colburn | Glass-working machine |
| | 626,859 | Jun. 13, 1899 | I.W. Colburn | Glass-working machine |
| | 696,008 | Mar. 25, 1902 | I.W. Colburn | Glass-working machine |
