The safety pin is patented in New York City

The safety pin was patented in New York City.  Walter Hunt invented the design, constructed a prototype, and sold his patent rights for one hundred dollars, all in one afternoon. (By John Osborne)
Source Citation
Joseph Nathan Kane, ed., Famous First Facts (New York: H.W. Wilson Company, 1981), 471.
    Date Certainty
    Exact
    Type
    Science/Technology
    How to Cite This Page: "The safety pin is patented in New York City," House Divided: The Civil War Research Engine at Dickinson College, https://hd.housedivided.dickinson.edu/node/11780.