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A procedure for converting in the Brittle ductile Metals, such as Tungsten, Molybdenum, Uranium or the like, or Alloys thereof,Particularly for Manufacturing Metallic filaments for incandescent Electric lamps
A procedure for converting in the Brittle ductile Metals, such as Tungsten, Molybdenum, Uranium or the like, or Alloys thereof,Particularly for Manufacturing Metallic filaments for incandescent Electric lamps