The state of the hearing organ in workers of the Klopfer apparatus

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Abstract

The rationalization of telegraph business in our Union, the transition from the old Morse apparatus to the Klopfer apparatus, raised the question: if Klopfer is profitable in operational and economic terms, then is the transition to it rational from the point of view of the worker's health.

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N. A. Bobrovsky

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Email: info@eco-vector.com
Russian Federation

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© 2020 Bobrovsky N.A.

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