Modern lighting : examples of its successful application in the industries. (1920)
National Lamp Works of General Electric Co. Engineering Department. · National Lamp Works of General Electric Co. Engineering Department · leaf 33
PLATE FIPTKKN « … Data—Pl.\tf: Fifteen The yexc Type of Unit RLM Standard Dome Lamp 100-watt Mazda CRowl-Enameled MouxTixG Height 11 feet above floor73 2 f^^^ above work Spacing Distance10 X 10 Average Illumination6 foot-candles
Electric lighting · Interior lighting fixtures, lamps, and ballasts
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