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U.EDU writes:
> Niels--Check patents but I think all Yale locks date after 1842--Carl Steen
I've sent Neils more details off-list, as asked, but ...
Yale invented (?re-invented) the pin-tumbler lock in 1848, his son joined
forces with Henry R. Towne, to form Yale and Towne in 1868.
--
Pat Reynolds
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