CAVANAGH V. MCMAHON et al. - Page 12




          Interference No. 102,668                                                    


          Exhibit A, a sketch of an assembled transducer, shows two                   
          "DRIVE ENDS" which are separated by ceramic stacks and held                 
          together by a tie rod, with two outer bars shown connected                  
          between the drive ends.  Exhibit B is a sketch of an "END                   
          MASS" that appears to be one of the "DRIVE ENDS" shown in                   
          Exhibit A.  Exhibit C, the graph                                            
          of the test results, has an x axis which is a logarithmic                   
          frequency scale between  100 and 10,000 Hz and a y axis which               
          appears to represent "db" values between 0 and -40.  Exhibit D              
          consists of photocopies of two photographs of the device                    
          Packard says he saw tested in August 1988.  Although Packard's              
          signature confirming the success of the tests he observed                   
          appears on Exhibits E and F, which show structural details not              
          apparent in Exhibits A, B, and D, the clear meaning of                      
          Packard's above-quoted testimony is that the device he saw                  
          tested is the device depicted in Exhibits A, B, and D (as                   
          opposed to Exhibits E an F).  This conclusion is also                       
          consistent with the testimony of Pelrin, who explained that in              
          August 1988 he saw a device that was constructed as shown in                
          Exhibits A, B, and D (CR 6-7):                                              
                         2.  To the best of my recollection, during                   
                    August, 1988, George Cavanagh requested my advice                 
                                          - 12 -                                      





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