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A slim jim (more technically known as a lockout tool) is a thin strip of metal (usually spring steel) roughly 60 centimetres (24 in) long and about 2–4 centimetres (0.79–1.57 in) wide originally marketed under that name by HPC Inc., a manufacturer and supplier of specialty locksmithing tools.
A variant of the standard deadbolt is the vertical deadbolt, invented by Samuel Segal. Vertical deadbolts resist jimmying, in which an intruder inserts a crowbar between the door and the jamb and attempts to prise the bolt out of the door. Other types of deadbolts include: Classroom-function (thumb-turn only unlocks door)
Samuel Segal of the Segal Lock and Hardware Company invented the first jimmy-proof locks in 1916. Harry Soref founded the Master Lock Company in 1921 and patented an improved padlock in 1924 with a patent lock casing constructed out of laminated steel. Linus Yale Sr. invented a pin tumbler lock in 1848.
Kwikset is an American lock and lockset manufacturer owned by Assa Abloy.Originally Gateway Manufacturing Company, Kwikset was founded in California in 1946 by Adolf Schoepe, and Karl Rhinehart.
Jake Simmons is a wanted criminal who gains electric abilities from the Ultra-Humanite's experimentation. Code-named "Deathbolt", he becomes the Ultra-Humanite's ally before being defeated by the All-Star Squadron.
The modern bored cylindrical lock was invented by the German-born engineer Walter Schlage [4] in 1923 [5], as an innovation on a patent filed in 1920 [6] for a lock whose installation required a face bore and surface rabbet, simplifying door preparation compared to a traditional mortise lock.
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