| 
                 Other links at  | 
               
              
                
                
            
              
                | 1.  | 
                
                  
                  Russells Technical Products Inc.
                 | 
               
              
                |  
                 | 
                
                  Design and manufacture environmental test chambers and provide a varied product line including both pre-engineered and custom products.
                   
                  
                  
                   
                  
                 | 
               
             
             
            
              
                | 2.  | 
                
                  
                  RPG Diffusor Systems
                 | 
               
              
                |  
                 | 
                
                  Develop and supply acoustic tools to enhance critical listening and performance in the music industry.
                   
                  
                  
                   
                  
                 | 
               
             
             
            
              
                | 3.  | 
                
                  
                  LMS International
                 | 
               
              
                |  
                 | 
                
                  Provide systems, software, measurement hardware and consulting for structural dynamics, acoustics and durability engineering. Belgium.
                   
                  
                  
                   
                  
                 | 
               
             
             
            
              
                | 4.  | 
                
                  
                  WDK Sales
                 | 
               
              
                |  
                 | 
                
                  Technical sales experience in shakers, test instrumentation and complete testing systems.
                   
                  
                  
                   
                  
                 | 
               
             
             
            
              
                | 5.  | 
                
                  
                  Diagnostic Instruments
                 | 
               
              
                |  
                 | 
                
                  Design and manufactures a range of noise and vibration analysers for industrial machine monitoring and manufacturing quality applications. United Kingdom.
                   
                  
                  
                   
                  
                 | 
               
             
             
                 | 
               
             
            
     
     
    
     |