Classification opinions
… for combustible mineral oil, and provided with a cone or funnel, or merely with a sliding lid for controlling the … : 1962 … 4. Steel tubes, threaded at the ends, with a bundle of steel wires fixed securely inside, intended for … three small screwdrivers (54 mm long). Adoption : 1998 … 7. Grounding rods in the form of solid-rod electrodes made of …