The lock was known as the “Detector,” and it needed no introduction.Indeed, since its patenting in 1818 by Jeremiah Chubb, a Portsmouth ironmonger, it had become one of the country’s most ...

Rob Thomson, president of the Victorian Alliance, ... One such patent was filed by D.B. Akard of San Francisco, who patented a door opening lever system in 1897 (US586375A and US590290A).

Kwikset Halifax Passage Door Lever with Square Rosette From $33 Material: Zinc, five finishes | Closing mechanism: Passage, privacy, dummy, and keyed entry ...