发明申请
US20060131425A1 Value document comprising a machine-readable authenticity mark 审中-公开
价值文件包含机读可读性标记

Value document comprising a machine-readable authenticity mark
摘要:
The invention relates to a value document having a machine-readable authenticity mark. According to the invention the authenticity mark comprises a luminescent marking substance and a marking substance absorbing in the infrared spectral range.
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