| Patents for Thomas Chatwin Ltd. |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| GB-190,718,926 | Jan. 09, 1908 | J.C. Van Duijl | Improvements in Screw Spanners or Wrenches | screw adjust wrenches |
| 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 | J. Chatwin, T. Chatwin, T.P. Chatwin, J. Virtue, A. Chatwin | 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 |
| GB-191,323,781 | Oct. 21, 1914 | T.P. Chatwin | Improvements in and relating to die heads for screwing machines, chucks and analogous articles | metal threading machines |
| GB-289,627 | May 03, 1928 | T.P. Chatwin, A.H. Handford | Improvements in and relating to screwing machines | metal threading machines |
| 2,487,994 | Nov. 15, 1949 | A. Travena | Lathe or other turning machines | metal lathes |
