When did Linus Yale Jr. secure the patent for the modern pin-tumbler lock?
Answer
1861
Linus Yale Jr. patented his now-famous design in 1861, building upon concepts developed by his father.
Related Questions
Where did the earliest ancestors of modern locks likely emerge?What secured the large wooden bolt in ancient locking devices?What did Roman metal locks primarily signify a shift towards, compared to earlier Egyptian locks?In what year did Joseph Bramah patent his significant anti-tampering lock design?What unique feature held the components under tension in Bramah's patented lock?What ancient concept did Linus Yale Jr.'s design streamline using metal precision?What is the term for the straight line formed when key pins and driver pins align correctly in a Yale lock?When did Linus Yale Jr. secure the patent for the modern pin-tumbler lock?What practical feature did Walter Schlage introduce around 1907 or 1908?What general engineering trend does the evolution of lock security illustrate?