Url https://edisondigital.rutgers.edu/document/W100DEF001 Resource class dctype:Text Title [W100DEF001], Legal Testimony, Ludwig K Boehm, September 20th, 1881 Creator Boehm, Ludwig K Subject Telephone Vacuum and glass bulb Publisher Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University Date 1881-09-20 Type Legal Testimony Identifier W100DEF001 Relation Scientific American American Association for Advancement of Science Goepel, Paul Geissler, Heinrich Batchelor, Charles Upton, Francis Robbins Dyer, George W Sprengel, Hermann Johann Philipp Raegener, Louis Edison, Thomas Alva Baetz, William Crookes, William Rights National Archives Date Created 1881-09-20 Is Part Of W100DEF-F Uri https://edisondigital.rutgers.edu/document/W100DEF001 https://edisondigital.rutgers.edu/document/W100DEF001 --