Thomas Edison "and his speaking phonograph before the National Academy of Science," with Uriah H. Pointer, left, and Charles Batchelor, right. "S. Bergman" written in ink on bottom right of photo.
<ul><li>Keywords: thomas edison; charles batchelor; presidents; rutherford b. hayes; phonograph; Edison; Thomas A.; (EDIS Historical Photo Series Name)</li></ul>
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Unknown author<span style="display: none;">Unknown author</span></div>
Taken on 18 April 1878
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