G01N2291/04 - CPC Classification Index

ClassID:

170176 ⎘

G01N2291/04 - CPC Classification

Classification description:

Indexing codes associated with group Wave modes and trajectories

Sub-classes:

G01N2291/042 » Wave modes 21
G01N2291/043 » Complex trajectories 3
G01N2291/044 » Internal reflections (echoes), e.g. on walls or defects 958
G01N2291/045 » External reflections, e.g. on reflectors 103
G01N2291/048 » Transmission, i.e. analysed material between transmitter and receiver 260
G01N2291/051 » Perpendicular incidence, perpendicular propagation 34
G01N2291/052 » Perpendicular incidence, angular propagation 4
G01N2291/055 » Angular incidence, perpendicular propagation 5
G01N2291/056 » Angular incidence, angular propagation 82
G01N2291/057 » Angular incidence, parallel to surface propagation 8

Recent Application in this class:

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System and method for portable ultrasonic testing

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Systems and methods for testing internal bonds