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The monograph, based on the results of comparative production tests of a modernized sewing machine equipped with a pusher with conical springs, compared with existing designs, eliminates problems with skipped stitches, material folds, thread breakage and needle breakage, and also smooths out the gathers that occur when sewing materials.

Produktbeschreibung
The monograph, based on the results of comparative production tests of a modernized sewing machine equipped with a pusher with conical springs, compared with existing designs, eliminates problems with skipped stitches, material folds, thread breakage and needle breakage, and also smooths out the gathers that occur when sewing materials.
Autorenporträt
I.R. Mavlonova, Kandidatin der technischen Wissenschaften, Doktorin der Philosophie (PhD), außerordentliche Professorin.