[QP003046], Legal Testimony, Jonas Walter Aylsworth, December 18th, 1905
Chemicals, chemical products, and chemical processes
Cylinder record and duplicating technology
[QP003-F] Litigation Series -- Phonograph Cases
https://edisondigital.rutgers.edu/document/QP003046
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Archive.org Viewer, Microfilm Series Reel 116