HOLYOKE, Mass.--(BUSINESS WIRE)--Signature® Engraving Systems, the world’s leading provider of computerized gift engravers, donated an early model to the Holyoke Boys & Girls Club in a new charity ...
William Dahlgren, a self-taught inventor who revolutionized the engraving industry a quarter of a century ago and was recently fiddling with computerized player pianos, died in his San Francisco home ...
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