… Primary cells are used for supplying current for a number of purposes (for bells, telephones, hearing aids, … together in batteries, either in series or in parallel or a combination of both. Cells and batteries remain classified …
… the pins contact metal tongues arranged like the teeth of a comb, causing them to vibrate and produce the notes. The … mechanical bows. These instruments may incorporate drums, cymbals, accordions, etc., thereby giving orchestra‑like …
… wire by hand or machine. The methods of manufacture broadly resemble those used in the textile industry (for simple warp … etc., made into the form of machinery parts, e.g., by assembly with other materials ( Chapter 84 or 85 ). (d) …
… equipment . This consists of the actual signals (usually a number of coloured lights, or moving arms or discs, mounted … level crossings, etc., or for controlling the passage of a number of trains over the same sections of line. The latter …
… lard) and other provisions, for packing dynamite, as membranes for use in the processes of osmosis and dialysis, … for wrapping fatty foods. It is hardly ever glazed and resembles vegetable parchment in appearance but can be …
