Improvements introduced in the means of apprehension for percussion tools (Machine-translation by Google Translate, not legally binding)

摘要

Perfections introduced into the means of apprehension for percussion tools, which are characterized by the establishment in them, in the area where they practically experience the torsion and balance consistent with their rhythmic work, and inside in the longitudinal sense, a soul constituted by an elastic metal piece of suitable section. (Machine-translation by Google Translate, not legally binding)