Sujet
Uncle Sam seeking way to improve theaters for talkies
Légende
Studying the 'echo effect' in this room and his body and the observing instruments are enclosed so as not to interfere with the tests. It has been found that cushioned seats in talking picture theaters aid in the absorption of the 'echo effect'
Crédit
Photo12/Universal Images Group/HUM Images
Notre référence
UMG22A04_022
Model release
Non
Property release
Non
Licence
Droits gérés
Format disponible
45,4Mo (7,9Mo) / 36,8cm x 31,0cm / 4341 x 3658 (300dpi)