| Patents for Williams Tool Corp. of Canada, Ltd. |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| CA-211,956 | May 24, 1921 | C.F. Williams | Thread cutting machine | metal threading machines |
| CA-243,035 | Sep. 16, 1924 | L.S. Hall | Pipe threading machine | pipe threading machines |
| 1,527,185 | Feb. 24, 1925 | L.S. Hall | Pipe-threading machine | pipe threading machines |
| CA-248,427 | Mar. 31, 1925 | L.S. Hall | Pipe threading machine | pipe threading machines |
| CA-253,990 | Sep. 22, 1925 | L.S. Hall | Lubricating device for threading machines | pipe threading machines |
| CA-253,991 | Sep. 22, 1925 | L.S. Hall | Cutting off and reaming attachment for threading machines | pipe threading machines |
| CA-253,992 | Sep. 22, 1925 | L.S. Hall | Steadying block for threading machines | pipe threading machines |
| CA-253,993 | Sep. 22, 1925 | L.S. Hall | Die head for threading machines | pipe threading machines |
| CA-253,994 | Sep. 22, 1925 | L.S. Hall | Chaser bit holder for threading machines | pipe threading machines |
| CA-255,579 | Nov. 17, 1925 | L.S. Hall | Pipe threading machine | pipe threading machines |
| CA-260,513 | May 04, 1926 | L.S. Hall | Threading machine | pipe threading machines |
| CA-263,252 | Aug. 03, 1926 | L.S. Hall | Belt tensioning device | pipe threading machines |
