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2. Rekeying - Wikipedia

   en.wikipedia.org/wiki/Rekeying

   Rekeying was first invented in 1836 by Solomon Andrews, a New Jersey locksmith. His lock had adjustable tumblers and keys, allowing the owner to rekey it at any time. Later in the 1850s, inventors Andrews and Newell patented removable tumblers which could be taken apart and scrambled.

3. Schlage - Wikipedia

   en.wikipedia.org/wiki/Schlage

   Schlage (/ ʃ l eɪ ɡ / SHLAYG) [1] [2] is an American lock manufacturer founded in 1920 by Walter Schlage. Schlage was headquartered in San Francisco from its inception until it relocated to Colorado Springs, Colorado, in 1997. Schlage also produces high-security key and cylinder lines Primus, Everest, and Everest Primus XP.

4. Locksmithing - Wikipedia

   en.wikipedia.org/wiki/Locksmithing

   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. Linus Yale Jr. improved upon his father's lock in 1861, using a smaller, flat key with serrated edges that is the basis of modern pin ...

5. Walter Schlage - Wikipedia

   en.wikipedia.org/wiki/Walter_Schlage

   His first patent was in 1909, inventing a door lock that turned lights on and off. [1] At the time, Schlage was a citizen of Germany residing in Berkeley, California. [2] In 1919, Schlage patented a door knob which, when pushed up, locked the door. [3] [4] This was succeeded by a door knob incorporating a push-button lock, patented in 1924. [5]

6. Over-the-air rekeying - Wikipedia

   en.wikipedia.org/wiki/Over-the-Air_Rekeying

   Due to the efficiency and vast cost savings inherent to OTAR, Commander Winters' methods were quickly adopted and spread Navy-wide, following which Vice Admiral J.O Tuttle, Commander of the Navy Telecommunications Command, [10] the Navy "J6", shortly influenced the Joint Chiefs of Staff to bring all the other military services into compliance. [11]

7. Allegion - Wikipedia

   en.wikipedia.org/wiki/Allegion

   Though it comprises thirty-one global brands, including CISA, Interflex, LCN, Schlage and Von Duprin, the company operates through two main sections: Allegion International and Allegion Americas. [2] The company employs around 12,000 people, [ 3 ] sells its products in more than 130 countries across the world and in 2022 generated revenues of ...