DIFF Subgroup
G10D 3/08 Fingerboards in the form of keyboards
Introduced: September 1968
Full Title
Details of, or accessories for, stringed musical instruments, e.g. slide-bars > Necks; Fingerboards, e.g. fret boards > Fingerboards in the form of keyboards
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 2020.
Child Classifications
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