DIFF Main Group
G09B 13/00 Teaching typing
Introduced: September 1968
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G09B 13/02 Dummy practice keyboard apparatus (for teaching music G09B15/08) IPC+CPC Available in IPC and CPC
- G09B 13/04 Devices used in association with a real typewriter, teleprinter, or the like IPC+CPC Available in IPC and CPC