Catalog of portables and shades : year of 1910. (1910)
Welsbach Commercial Company. Middle West Department · Welsbach Commercial Company. Middle West Department · leaf 21
is rigidly --■ . » ---- —•& v«.vv.41 «^ „», uic iicciu uj. Liie mantle, A refractory tube is used to prevent bending of the supporting wire. J Soy^j J! 1:1
Gas Lighting · Electric lighting · Interior gas lighting · Interior lighting fixtures, lamps, and ballasts
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