Power Lines (1944)
1944 · 0h 16m · Documentary
Genres: Documentary
The manufacture of cables for transmitting electric power is shown. Copper bars are rolled and drawn into wire, which is twisted into strands, and covered for insulation and protection with layers of rubber, lead, cloth and paper.
Director: James E. Rogers
Cast
Norman Shelley as Commentator (voice)Alvar Liddell as Commentator (voice)More like this
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