UDC 62
SPEAKERPHONE FOR MINE HOIST
Komarov S.G.
retired
independent researcher, electrician
retired
independent researcher, electrician
Abstract
This article is about speakerphone for mine hoist.
Article reference:
Speakerphone for mine hoist // Modern technics and technologies. 2013. № 1 [Electronic journal]. URL: https://technology.snauka.ru/en/2013/01/1474
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