All Patents in class 470/59 |
Patents 1 -
13
of 13
|
Number | Date | Patentee | Title | Type |
1,172 | Jun. 18, 1839 | S.H. Wills | Improvement in Machines for Cutting Screws in Wood for Framing Purposes | wood threading machines |
2,198 | Jul. 29, 1841 | J. Thompson | Machine for Cutting Screws on the Rails of Bedsteads | wood threading machines |
2,754 | Aug. 18, 1842 | C. Whipple | Machine for Making Wood Screws | screw machines |
4,548 | May 30, 1846 | T.W. Harvey | Making Wood Screws | screw machines |
4,613 | Jul. 02, 1846 | T.W. Harvey | Nicking Heads of Wood Screws | screw machines |
4,738 | Sep. 03, 1846 | T.W. Harvey | Making Wood Screws | screw machines |
5,794 | Sep. 19, 1848 | J. Crum | Machine for Making Wood Screws | screw machines |
6,387 | Apr. 24, 1849 | J. Burdge, W.F. Converse | Machinery for Cutting Screws on Rails for Bedsteads | wood threading machines |
21,641 | Sep. 28, 1858 | H.P. Hunt, H.L. Kendall | Improvement in Cutting Threads of Wood-Screws | screw machines |
42,766 | May 17, 1864 | H.A. Harvey | Improvement in Machines for Threading Wood-Screws | metal threading machines |
125,269 | Apr. 02, 1872 | J.M. Carpenter | Improvement in Machines for Threading Wood Screws | screw machines |
125,980 | Apr. 23, 1872 | S. North | Improvement in Screw Cutting Devices | wood threading machines |
RE7,573 | Mar. 27, 1877 | H.A. Harvey | Machine for Threading Wood Screws | |