90002_7925_06.mov

90002_7925_06

Man calculates with slide rule. Metal refinery machines spit flame. Workers prepare tungsten with industrial machines to make lightbulb filaments. Metals are heated, wires are coiled, lightbulbs are prepared. CUs of lightbulbs and filaments on assembly lines. Wall of various lightbulbs set up for display. A man turns on the "mighty 75,000 watter."

1960s
Color
Not Explicit