Ex parte WINDEL et al. - Page 16
          Appeal No. 1999-1565                                                        
          Application No. 08/494,227                                                  
          SCHIFF, HARDIN & WAITE                                                      
          PATENT DEPARTMENT                                                           
          6600 SEARS TOWER                                                            
          233 SOUTH WACKER DRIVE                                                      
          CHICAGO, IL 60606                                                           
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