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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.
Door and window sensors are also implemented in most home security systems. One part of the system is installed on the door or window itself while the other part is installed on the frame of the door or window. The two part system connects securely when a door or window is closed, creating a security circuit. [5]
The term window security may refer to any of a range of measures used to avoid unauthorized access through windows, and prevent crimes such as burglary and home invasions. Window security is used in commercial and government buildings, as well as in residential settings.
Here is a non-exhaustive list of historical projects undertaken by the Yale Lock Company, where they equipped buildings with their locks and hardware: [21] [22] Metropolitan Life Insurance Company Tower, the headquarters of the Metropolitan Life Company (1909) Woolworth Building, the headquarters of the Woolworth Company (1912)
Mul-T-Lock is an Israeli company that develops and sells padlocks, combination locks, and related security products. It was founded in 1973 by Moshe Dolev and Avraham Bahry [1] and is a subsidiary of Assa Abloy. Four years later, in 1977, Mul-T-Lock introduced the telescopic pin technology and entered the cylinders market.
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In 1974, Master Lock ran a Super Bowl ad demonstrating one of their locks withstanding a shot by a sharpshooter, thereby proving its durability and thus their slogan "Tough Under Fire". Master Lock continued running similar ads during future Super Bowls, spending almost their entire annual marketing budget on the single commercial. [6]