Stencilling a unique machine-readable marking on each of a plurality of workpieces
作者： Anthony S. Baran
DOI:
关键词: Envelope (motion) 、 Stencil 、 Engineering 、 Engineering drawing
摘要: Method and apparatus are described for producing a unique machine-readable marking, such as bar-code on each of succession workpieces, glass envelope parts cathode-ray tubes. The method comprises applying different stencil workpiece then suitable paint through the stencil.
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