This Day In History: Levi Strauss patents blue jeans - YouTube
This Day in History - May 20: Levi's blue jeans patented (no prep/sub plans)
Marina Amaral on Twitter: "#OnThisDay in 1873, Levi Strauss and Jacob Davis patent the first blue jeans with copper rivets. https://t.co/qO6158uKPq" / Twitter
Horse Power: The Story Behind Our Jeans — Literally - Levi Strauss & Co : Levi Strauss & Co
Amazon.com: Levi Jeans Patent - Levi Strauss Fastening Pocket Openings, Great for Sewers Room Decoration, Denim Jeans Poster, Classic Gifts for Fashion Designers and Sewers, 11x14 Unframed Patent Print Poster : Handmade
Patents Everywhere – Levi Strauss and Blue Jeans – Lichtenberger Engineering Library
The Complete Buying Guide to Levi's Jeans: All Fits, Explained
Levi Strauss Jeans Patent Art 1872 Blueprint Photograph by Ian Monk - Pixels