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American WMS Industries, a maker of casino gambling machines, has acquired a Swedish developer of online gambling games, Jadestone Group AB of Stockholm.

"Jadestone's online expertise accelerates our efforts to develop a comprehensive suite of interactive products, managed services and content distribution capabilities," WMS President Orrin J. Edidin said in a statement.

Terms of the cash deal were not disclosed.

Jadestone has established itself as a leading B2B platform integrator and online game publisher, serving customers primarily in Europe.