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Circular of the Bureau of Standards no. 439::acoustic performance of 16-millimeter sound motion-picture projectors

Published

Author(s)

Wilbert F Snyder
Citation
- NBS CIRC 439
Report Number
NBS CIRC 439

Citation

Snyder, W. (1942), Circular of the Bureau of Standards no. 439::acoustic performance of 16-millimeter sound motion-picture projectors, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NBS.CIRC.439 (Accessed November 8, 2024)

Issues

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Created January 1, 1942, Updated May 19, 2023