1841 4 234/1 Improvements in slotting machines.
1841 4 234/1 The fourth part is an improvement in the slotting bar.
1863 114 298 The planing, slotting, or turning machinery of these factories.
1869 W. J. M. Rankine Pl.P 17 The ordinary turning, planing, and slotting tools.
1874 E. H. Knight I. 185/1 The Slotting Auger cuts laterally.