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Publication of SU371714A1publicationCriticalpatent/SU371714A1/ru
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Publication of SU371714A3publicationCriticalpatent/SU371714A3/ru
B26B19/10—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving two or more different types of reciprocating cutting elements, e.g. a pair of toothed shearing elements combined with a pair of perforated cutting elements or a combined toothed and perforated cutting assembly