PERFORATRICE IN PARTICOLARE PER CARTA
A punch comprises a base member 12 having two upright arms 4 holding two vertically displaceable, spring-loaded punching dies (2, Fig. 3) and a top member 1 mounted on the base member by way of an axle 3 operable to displace the dies. The top member 1 is provided on the inward sides of two oppositel...
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Sprache: | ita |
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