Acoustic performance of 16-millimeter sound motion-picture projectors
By: by Wilbert F. Snyder.
Contributors: United States. National Bureau of Standards.
Series: Circular of the National Bureau of Standards -- C439
Publisher: Government Printing Office
Published: 1942
Place of publication: Washington
Language: eng
Number of pages: 56
Subjects: Motion picture projectors.
Other titles: Performance of 16-mm sound motion-picture projectors
Notes: "Issued July 6, 1942."

At head of title: U.S. Department of Commerce. National Bureau of Standards.

Includes bibliographical references (p. 56).