07222852 is referenced by 102 patents and cites 255 patents.

A stacked set of playing cards are supported to expose an information bearing portion bearing a first machine-readable indicia and an information bearing portion bearing a second machine-readable indicia, such that each of the first and second machine-readable indicia from a number of cards are read by at least one reader. The second machine-readable indicia may provide redundancy, or may be related to the first machine-readable indicia to allow the authentication of the playing card.

Title
Method, apparatus and article employing multiple machine-readable indicia on playing cards
Application Number
10/360846
Publication Number
7222852 (B2)
Application Date
February 5, 2003
Publication Date
May 29, 2007
Inventor
Richard Huizinga
Mercer Island
WA, US
Richard Soltys
Mercer Island
WA, US
Agent
Seed IP Law Group PLLC
Assignee
Ball Gaming International
NV, US
IPC
A63F 13/00
A63F 1/12
A63F 1/14
A63F 9/00
A63B 71/00
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