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Displaying 1 to 1 of 1 results for 1924
Prof. Abbott illustrated use of stethescope
Publication: Exponent Newspapers
Subject: Microphone Stethescope
Date: 2/22/1924
p. 3, c. 2
Publication: Exponent Newspapers
Subject: Microphone Stethescope
Date: 2/22/1924
p. 3, c. 2