The First Pin-Lock and Wooden Key Traveled From Ancient Egypt to Greece December 11, 2018
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Blog - Farmer Soul » unique gifts
One of the biggest milestones in the history of keys and locks was the invention of the pin tumbler lock by Linus Yale Sr in 1848 and the design of a flat key with serrated edges by his son Linus Yale Jr. This key strengthened the locking mechanism, as it would first...