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Improvements in the Process of Producing Filaments or Wire of Tungsten and Tungsten Alloy.
Improvements in the Process of Producing Filaments or Wire of Tungsten and Tungsten Alloy.
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机译:改进钨和钨合金丝或丝的生产工艺。
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16,066. Kr³ger, E. A. July 11. Modifying chemical characters of metals.-The non-metallic components of a tungsten alloy wire used for making electric-lamp filaments may be expelled by a protracted heating in a vacuum followed by further working while hot.
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