The move by employees in Towson, Maryland, is the latest in a string of high-profile union campaigns in the US.
Workers at an Apple store in Maryland have voted to unionise, forming the tech giant's first retail union in the United States.After the result came in, the group tweeted: "Now we celebrate… tomorrow we keep organising."
The new Apple Core union - short for the Coalition of Organized Retail Employees - penned an open letter to Apple in May, saying its bid was "about us as workers gaining access to rights that we do not currently have", but that it did not want to "go against or create conflict with our management".
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