This website contains age-restricted materials including nudity and explicit depictions of sexual activity.
By entering, you affirm that you are at least 18 years of age or the age of majority in the jurisdiction you are accessing the website from and you consent to viewing sexually explicit content.
I’m curious why he doesn’t talk about all the patents that specify locking as a feature. Even modern patents reference the features of older ones in their designs if they use them.
He used all modern plugs you would find on houses in 2000+, of course none of them lock the old way. Go grab some from the 20s and 30s.