Title (en)
Loud Speaking Public Address System (1922/23)
Language
Not applicable
Description (en)
Western Electric's Loud Speaking Public Address System, patented in the USA in 1922 and in England in 1923. Source: medienstimmen.de
Compiler
Campus Medius
Format
image/jpeg
Size
161.9 kB
Licence Selected
All rights reserved
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Persistent identifier
https://phaidra.univie.ac.at/o:1080523 - Details
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