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 13
tt ]\Iazda CClear Mounting Hei(;ht919 feet above floor Spacing Distance9x11 A relatively large quantity of light isdesirable for the precise work of assem-bling small parts for adchng machines.Tn this installation, light surfaces on thework l)enclies reflect sufficient light to theceiling to create…
Electric lighting · Interior lighting fixtures, lamps, and ballasts
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