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PCE
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CPC Subgroup
G01N 3/48

by performing impressions under impulsive load by indentors, e.g. falling ball (G01N3/54 takes precedence)

Full Title

Investigating strength properties of solid materials by application of mechanical stress > Investigating hardness or rebound hardness > by performing impressions under impulsive load by indentors, e.g. falling ball (G01N3/54 takes precedence)