IPC Subgroup
G01B 3/34 Ring or other apertured gauges, e.g. "go/no-go" gauge
Introduced: September 1968
Last revised: January 2006
Full Title
Measuring instruments characterised by the use of mechanical techniques > Ring or other apertured gauges, e.g. "go/no-go" gauge
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
1 direct subcode
Child Classifications
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- G01B 3/36 for external screw threads