| Patents for Thomas Chatwin |
Patents 1 -
4
of 4
      |
| Number | Date | Patentee | Title | Type |
| GB-190,908,038 | Jan. 13, 1910 | . | Improvements in apparatus for facing or preparing pipes for the purposes of making joints | pipe cutters |
| GB-190,908,274 | Mar. 24, 1910 | A. Chatwin, J. Chatwin, T. Chatwin, T.P. Chatwin, J. Virtue | Improvements in and relating to die heads of screwing machines | metal threading machines |
| 996,311 | Jun. 27, 1911 | T. Chatwin, T.P. Chatwin, J. Virtue | Die-head of screwing-machines | metal threading machines |
| FR-432,352 | Dec. 05, 1911 | T. Chatwin | Improved cage for tapping dies | metal threading machines |
