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Additional information
Translated from Khimicheskoe i Neftyanoe Mashinostroenie, No. 5, pp. 41–44, May, 1973.
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Vinokur, Y.N., Gel'man, V.E., Savchenko, A.P. et al. Roller-helical transmissions a review of foreign patents. Chem Petrol Eng 9, 471–475 (1973). https://doi.org/10.1007/BF01155653
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DOI: https://doi.org/10.1007/BF01155653