| All Patents of Type: metal threading machines |
Patents 1 -
15
of 107
      |
| Number | Date | Patentee | Title | Type |
| 42,766 | May 17, 1864 | H.A. Harvey | Improvement in Machines for Threading Wood-Screws | metal threading machines |
| 81,049 | Aug. 11, 1868 | S.L. Wiegand | Screw Threading Machine | screw machines |
| 88,885 | Apr. 13, 1869 | J.L. Mason | Screw Forming Machine | metal swaging machines |
| 111,248 | Jan. 24, 1871 | S.W. Putnam, Jr. | Improvement in machines for cutting screw-threads on bolts | metal threading machines |
| 113,740 | Apr. 18, 1871 | J.M. Carpenter | Improved Machine for Cutting Screws | metal threading machines |
| 122,702 | Jan. 16, 1872 | O.C. Burton | Improvement in Machines for Cutting Threads on Bolts | metal threading machines |
| 133,527 | Dec. 03, 1872 | A.E. Goddard, A. Goddard | Machines for Threading Screw Taps | metal threading machines |
| 133,574 | Dec. 03, 1872 | G. Emig | Machines for Cutting Screw Threads on Bolts and Nuts | metal threading machines |
| D6,764 | Jul. 08, 1873 | S.W. Putnam, Jr. | Design for frame of bolt-threading machines | metal threading machines |
| 141,460 | Aug. 05, 1873 | H.O. Reed | Improvement in screw-cutting machines | metal threading machines |
| 141,760 | Aug. 12, 1873 | S.W. Card | Machines for milling twist-drills | metal threading machines |
| 144,100 | Oct. 28, 1873 | E. Horton | Screw Threading Machines | metal threading machines |
| 147,462 | Feb. 10, 1874 | A. Wood | Bolt Threading Machines | metal threading machines |
| 153,804 | Aug. 04, 1874 | H.E. Boyd | Lathe Attachments for Cutting Screw Taps | metal lathe accessories and attachments |
| 162,194 | Apr. 20, 1875 | E. Schlenker | Improvement in bolt-threading machines | metal threading machines |
