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Lottery ticket

Printed matter – Having revealable concealed information – fraud preventer or...
Patent

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Lottery ticket having validation data printed in developable inv

Printed matter – Having revealable concealed information – fraud preventer or... – Utilizing chemical
Patent

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Lottery ticket integrity number

Printed matter – Having revealable concealed information – fraud preventer or... – Cryptogram
Patent

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Lottery ticket structure with circuit elements

Printed matter – Having revealable concealed information – fraud preventer or... – And electrically conductive material
Patent

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Lottery ticket with hidden conductive ink security means

Printed matter – Having revealable concealed information – fraud preventer or... – Having plastic laminate
Patent

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Lottery ticket with metalized scratchoff layer

Printed matter – Having revealable concealed information – fraud preventer or... – By removeable material
Reexamination Certificate

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Low cost laminatable plastic envelope for easy customized self-l

Printed matter – Having revealable concealed information – fraud preventer or... – Having plastic laminate
Patent

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Luminescent writing display device having protective layer

Printed matter – Having revealable concealed information – fraud preventer or... – Utilizing superposed layers
Patent

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