Ex parte ALLISON ETAL. - Page 8

              Appeal No. 1998-1674                                                                Page 8               
              Application No. 08/437,712                                                                               


              PATENT DEPARTMENT                                                                                        
              PPG INDUSTRIES INC                                                                                       
              ONE PPG PLACE                                                                                            
              PITTSBURGH PA  15272                                                                                     









































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