`  :Upon even further research, apparently it's a bit more complex.  According to this article (subscription required) from the Hayward, California Daily Review, Aug 13 1972, the version of the zipper Sundback invented in 1913 was a failure due to poor durability, prompting Sundback to design a new one in 1914 called the ``Hookless No. 2``. That was after the Hookless Fastener Company was already operating, so it would have been in Meadville rather than Hoboken.  So whether the zipper was invented in Hoboken or Meadville depends on whether you consider the Hookless No. 1 or the No. 2 the true ``zipper``. `