Invention of the Yale Lock

29 January 1861



Y/M/D Description Place
1861/01/29 Linus Yale receives US patent No 31,278 for a Cylinder Lock: Be it known that I, LINUS YALE, Jr, of the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Locks for Drawers, Closets, Cupboards

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