transcription), filed December 1887, issued April 1888 Graphophone Tablet (hard "ozocerite" (carnauba wax) cylinder coating), filed November 1887, issued February 1890 Machine for the Manufacture of Wax-coated Tablets for Graphophones (helically wound paper tubes), filed June 1889, issued May 1890 See also Alvan Clark & Sons, instrument makers Phonograph Photophone Volta Laboratory and Bureau, Alexander Graham Bell's research laboratory in Washington, D.C. References Further reading Frow, George L. & Sefl, Albert F. "The Edison Cylinder Phonographs 1877 – 1929", Kent, Great Britain: Flo-Print, 1978. Juttlemann, Herbert. "Phonographen und Grammaphone", Braunschweig, Germany: Klinkhardt and Biermann, 1979. Marty, Daniel. "The Illustrated History of Phonographs", translation by Douglas Tubbs, VILO Inc., New York,1981. Proudfoot, Christopher. "Collecting Phonographs and Gramaphones", Christie's International Collectors Series, Mayflower Books, New York, 1980. The National Phonograph Company. "The Phonograph and How to Use It", Allen Koenigsberg, New York,1971 (c. 1900). External links Charles Tainter and the Graphophone Plaque in Washington D.C. marking the successful Bell/Tainter photophone experiment 1854 births 1940 deaths American manufacturing businesspeople American inventors American scientific instrument makers 19th-century American people 20th-century American people People from Watertown, Massachusetts