Abstract
IN the article on my paper on telephone apparatus standardisation in NATURE of Nov. 26, the writer states that it is not easy to understand what telephone engineers mean by a transmission unit, and I agree that if reference only is made to the short statement included in my paper this is certainly true. I may, perhaps, therefore be allowed to supplement this statement by the following remarks:
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COHEN, B. Standardisation of Telephone Apparatus. Nature 120, 953 (1927). https://doi.org/10.1038/120953a0
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DOI: https://doi.org/10.1038/120953a0
