Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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3/00
Investigating strength properties of solid materials by application of mechanical stress
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G01N3/32
by applying repeated or pulsating forces
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G01N3/34
generated by mechanical means, e.g. hammer blows
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