1. [Acquisition Division] Publication: Produced: [between 1950 and 1959] Subject(s): Libraries, MedicalLibrary MaterialsLibrary Technical ServicesNational Library of Medicine (U.S.)
2. [Copyflo machine produces photocopied articles from microfilm] Publication: Produced: [1957?] Subject(s): Libraries, MedicalLibrary AutomationCopying ProcessesLibrary MaterialsNational Library of Medicine (U.S.)