发明授权
US07837317B2 Solid ink stick with witness mark 有权
坚实的墨水棒与见证标记

Solid ink stick with witness mark
摘要:
A solid ink stick comprises an ink stick body having a top surface, a bottom surface, and a plurality of side surfaces extending between the top and bottom surfaces. The plurality of side surfaces defines a perimeter of the ink stick body. At least one key contour is formed in at least one side surface in the plurality of side surfaces extending at least partially between the top surface and the bottom surface. A witness mark is formed along at least a portion of the perimeter of the ink stick body with a portion of the witness mark following the at least one key contour.
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