Details of apparatus provided for in groups G01R33/44 - G01R33/64

Introduced: January 1990

Title

Titles differ between systems:

IPC: Details of apparatus provided for in groups

CPC: Details of apparatus provided for in groups G01R33/44 - G01R33/64

Full Title

Full titles differ between systems:

IPC:

Arrangements or instruments for measuring magnetic variables > involving magnetic resonance > Details of apparatus provided for in groups

CPC:

Arrangements or instruments for measuring magnetic variables > involving magnetic resonance (medical aspects A61B5/055; magnetic resonance gyrometers G01C19/60) > Details of apparatus provided for in groups G01R33/44 - G01R33/64

CPC subdivides this area 2x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1990.

Child Classifications

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G01R 33/281 CPC only CPC only
G01R 33/282 CPC only CPC only
G01R 33/283 CPC only CPC only
G01R 33/285 +2 CPC CPC only CPC only
G01R 33/288 CPC only CPC only
G01R 33/30 Sample handling arrangements, e.g. sample cells, spinning mechanisms since 1990 +3 CPC IPC+CPC Available in IPC and CPC
G01R 33/32 Excitation or detection systems, e.g. using radio frequency signals since 1990 +1 CPC IPC+CPC Available in IPC and CPC
G01R 33/38 Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field since 1990 +4 CPC IPC+CPC Available in IPC and CPC
G01R 33/42 Screening since 1990 IPC+CPC Available in IPC and CPC