73733517
Jun 10, 1988
Jan 16, 1990
ELECTRIC HEATER WIRE ASSEMBLY, ELECTRIC HEAT BANDS, KIT CONSISTING PRIMARILY OF ELECTRIC ROOF CABLES FOR MELTING SNOW ON ROOFS, ELECTRIC SOIL CABLES, KIT CONSISTING PRIMARILY OF ELECTRIC HEATERS FOR STARTING THE GROWTH OF PLANT SEEDS, AND MINERAL INSULATED HEATING CABLES
Electrical and Scientific Apparatus