| All Patents in class 470/80 |
Patents 1 -
15
of 42
      |
| Number | Date | Patentee | Title | Type |
| 2,754 | Aug. 18, 1842 | C. Whipple | Machine for Making Wood Screws | screw machines |
| 4,106 | Jul. 10, 1845 | C. Whipple | Machine for Making Wood Screws | screw machines |
| 4,548 | May 30, 1846 | T.W. Harvey | Making Wood Screws | screw machines |
| 4,864 | Nov. 24, 1846 | T.J. Sloan | Making Wood Screws | screw machines |
| 42,766 | May 17, 1864 | H.A. Harvey | Improvement in Machines for Threading Wood-Screws | metal threading machines |
| 63,446 | Apr. 02, 1867 | G.H. Wells | Threading Screws | screw machines |
| 125,269 | Apr. 02, 1872 | J.M. Carpenter | Improvement in Machines for Threading Wood Screws | screw machines |
| 142,416 | Sep. 02, 1873 | J.J. Sheridan | Improvement in Boring and Drilling Machine | wood drilling and boring |
| RE7,573 | Mar. 27, 1877 | H.A. Harvey | Machine for Threading Wood Screws | |
| 256,546 | Apr. 18, 1882 | A.S. Cook | Wood-screw machine | screw machines |
| 293,930 | Feb. 19, 1884 | C.V. Woerd | Machine for Threading Sectional Leading Screws | metal threading machines |
| 301,165 | Jul. 01, 1884 | G.F. Ballou, W.A. Rogers | Apparatus for Cutting Screws | metal threading machines |
| 439,531 | Oct. 28, 1890 | A. Leck | Attachment for Lathes | metal lathe accessories and attachments |
| 490,503 | Jan. 24, 1893 | G.S. Rominger | Worm Gear Cutting Machine | gear making machines |
| 602,449 | Apr. 19, 1898 | H. Hill | Boring Tool | |
