… appliances and machines, not specified or included elsewhere in this Chapter; profile projectors. …
Explanatory notes
… measuring or checking instruments, appliances and machines, whether or not optical . It should, however, be noted that … rotors, crank shafts, connecting rods, propeller shafts, wheels, flywheels. In dynamic machines, the parts are … inertia). (6) Head contour measurers , used by hatters, which operate by perforating a sheet of paper. (7) Dial …