B - Operations – Transporting – 42 – D
Patent
B - Operations, Transporting
42
D
B42D 15/04 (2006.01) A63F 3/06 (2006.01)
Patent
CA 2551993
A fanfold booklet containing pages that are permanently marked on one or both sides with mono- or polychromatic indicia and can be temporarily and repeatedly marked. This booklet can be used for example during the course of a game of bingo to provide the proprietor of a bingo hall with reusable bingo cards that can be tracked in order to verify the legitimacy of a patron's use of such a card.
Khaladkar Vikas
Khaladkar Vikas
Macpherson Leslie & Tyerman Llp
Touchstar Technologies Inc.
LandOfFree
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