"Filmgraph" sound recorder ; "Filmgraph" electric dictating and transcribing machine ; "Sound-O-Graph" for synchronizing sound and film ; transformers ; "Miles" microphones ; portable sound systems ; interoffice communications systems ; other sound recording equipment .
Includes:
Trade catalog and price lists
Black and white images
Physical description:
31 pieces; 1 box
Language:
English
Type of material:
Trade catalogs
Trade literature
Place:
New York City, New York, United States
Date:
1900s
Topic (Romaine term):
Sound recording and playback equipment (including phonographs; microphones; and phonograph records) Search this