| Patents for William Blackett Haigh |
Patents 31 -
35
of 35
      |
| Number | Date | Patentee | Title | Type |
| GB-191,009,148 | Dec. 08, 1910 | W.B. Haigh | Chain mortiser | mortising machines |
| 987,065 | Mar. 14, 1911 | W.B. Haigh | Chain mortising machine | mortising machines |
| GB-137,182 | Jan. 08, 1920 | W.B. Haigh | Turret-head hollow-chisel and chain-cutter mortiser | mortising machines |
| GB-138,467 | Feb. 12, 1920 | W.B. Haigh | Turret-head hollow-chisel and chain-cutter mortiser | mortising machines |
| GB-242,025 | Nov. 05, 1925 | W.B. Haigh | Improvements relating to planing, moulding and the loke wood working machines | molders |
