The state of the hearing organ in workers of the Klopfer apparatus
N. A. Bobrovsky
Kazan medical journal ›› 1930, Vol. 26 ›› Issue (5-6) : 592 -597.
The state of the hearing organ in workers of the Klopfer apparatus
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.
Bobrovsky N.A.
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