Locks and Security News: your weekly locks and security industry newsletter
28th October 2020 Issue no. 531
Your industry news - first
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Bump Keys correction
"A little bit of history, the patent for a 'bump key' was first registered in 1928. Then in the 1970's concerns were raised as to the security issues posed by 'bump keys'."
isn't quite correct.
George John Baron applied for a British patent in July 1925, which was granted (#251,810) shortly thereafter. Then, on August 23, 1927, he was granted U. S. patent #1,639,919 for the same "Locksmith's instrument to open all standard makes of cylinder locks."
Vaughan Armstrong, CMST, CML
Overseas Member, MLA
28th March 2012