electrical heating cable used to warm interior floors, to heat exterior surfaces to remove snow and ice, to remove snow and ice from roofs and eaves, to prevent accumulation of snow and ice on sidewalks, pedestrian ramps, vehicle roads and road ramps, and to prevent freezing of pipes, valves, flanges, fittings, tanks and pumps in refineries, steel mills, chemical plants, food and beverage machinery, and off-shore oil drilling platforms

Sensitized Paper Adapted for Inscription by the Localized Application of Heat