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Home › Systems and methods for authorizing a transaction card

Systems and methods for authorizing a transaction card

US Patent 6182894 · Granted Feb 6, 2001

Estimated economic value: $596,416,000 ⓘ

Assignee

American Express

Inventors

Ann Fritz Hackett (2 patents)
Lisa Wang Arnold (3 patents)
Vickie Jordan (1 patents)

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