Method of making a machine-readable marking in a workpiece

Details Method of making a machine-readable marking in a workpiece Method of making a machine-readable marking in a workpiece

B - Operations, Transporting

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327/1.4

B23K 26/00 (2006.01) B23K 26/40 (2006.01) B44B 7/00 (2006.01) C03C 23/00 (2006.01) G06K 1/12 (2006.01)

Patent

CA 1147397

RCA 73,566 Abstract A method for producing a machine-readable coded marking in the surface of a workpiece, such as a glass faceplate panel or a glass funnel for a cathode-ray tube, comprises targeting a series of contiguous strip-like areas of unit widths on the surface and vaporizing the surface portions of selected ones of the areas according to a prearranged program related to the marking.

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