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A comment on Show HN: URL Shortener Optimized for QR Code. Parent comment

Re:Show HN: URL Shortener Optimized for QR Code by emeraldd on Monday October 05, 2020 @06:33PM (#24692792)
huh ... Seems like the patents might be expired?

https://patents.google.com/patent/US8131597 https://patents.google.com/patent/US6199048

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