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Show Concrete Pole Invented. Heine, Switzerland A Swiss engineer, en-gineer, M. Hans Slcgwart, has Invented Invent-ed n new telegraph polo which Is made of concrete Instead of wood rip iron, uh at prt-uout used. A spcclul machine Is employed to fin m long, hollow concrete iods, which withstand tlmo and weather In such a manner as to render them more than twice us economical as wood or Iron poles. The poles will probably be largely used for electric tramways and overhead over-head lelephonn lines. |