Arrangements or instruments for measuring magnetic variables

Introduced: September 1968

CPC subdivides this area 5x more granularly than IPC with 11 additional codes.

11 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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G01R 33/0005 CPC only CPC only
G01R 33/0011 CPC only CPC only
G01R 33/0017 CPC only CPC only
G01R 33/0023 +3 CPC CPC only CPC only
G01R 33/0047 CPC only CPC only
G01R 33/0052 CPC only CPC only
G01R 33/0058 CPC only CPC only
G01R 33/0064 CPC only CPC only
G01R 33/007 +2 CPC CPC only CPC only
G01R 33/0088 CPC only CPC only
G01R 33/0094 CPC only CPC only
G01R 33/02 Measuring direction or magnitude of magnetic fields or magnetic flux (G01R33/20 takes precedence) +2 CPC IPC+CPC Available in IPC and CPC
G01R 33/12 Measuring magnetic properties of articles or specimens of solids or fluids (involving magnetic resonance G01R33/20) +11 CPC IPC+CPC Available in IPC and CPC
G01R 33/20 involving magnetic resonance (medical aspects A61B5/055; magnetic resonance gyrometers G01C19/60) since 1985 IPC+CPC Available in IPC and CPC