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Society of Motion Picture and Television Engineers - A Continuous Level Recorder for Routine Studio and Theater Measurements

Author(s): G. M. Sprague ; John K. Hilliard
Publisher: Society of Motion Picture and Television Engineers
Publication Date: 1 December 1937
Volume: 29
Page(s): 645 - 655
ISSN (Paper): 0097-5834
DOI: 10.5594/J01914
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