AUTOMATIC PLAYING CARD SHUFFLER AND OTHER CARD-HANDLING DEVICES CONFIGURED TO DETECT MARKED CARDS AND METHOD OF USING THE SAME
An automatic playing card shuffler incorporating means for detecting marked cards. One or more light spectrum emitters or variable light spectrum illuminators transmit light at frequencies/wavelengths which is reflected off card backs through one or more spectrum filters causing invisible markings t...
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Sprache: | eng |
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