Class Information
Number: 76/13
Name: Metal tools and implements, making > File cutting > Rasp-punching
Description: Machines specially adapted to form rasping-teeth upon file-blanks, usually by swaging up the teeth from the surface of the blank by means of punches. These machines are usually characterized by mechanism adapted to shift the bed or the tool in such a manner as to form the teeth in staggered rows.
Patents under this class:
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