Upon even further research apparently its a bit more complex  According to this article subscription required from the Hayward California Daily Review Aug   the version of the zipper Sundback invented in  was a failure due to poor durability prompting Sundback to design a new one in  called the Hookless No  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  or the No  the true zipper