4. Cryptography
  5. Electric signal modification
  6. Having production of printed copy

Calin A. Sandru

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Apparatus and method for enhancing the security of...

Cryptography – Electric signal modification – Having production of printed copy
Reexamination Certificate

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Apparatus and method for enhancing the security of...

Cryptography – Electric signal modification – Having production of printed copy
Reexamination Certificate

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Apparatus and method for enhancing the security of...

Cryptography – Electric signal modification – Having production of printed copy
Reexamination Certificate

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Payment validation network

Registers – Systems controlled by data bearing records – Banking systems
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2104496

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