Dyson to invest $3.7 billion to double product range
            
        
            
        
        
        
            Dyson, the inventor of the bagless vacuum cleaner, said it would invest £2.75 billion in new technology in the next five years to double its product portfolio, including devices that would take it beyond the home.
        
        
        
        
            
                Business
                 • 27 Nov 20