DIFF Subgroup
G10C 3/22 specially adapted for grand pianos
Introduced: September 1968
Full Title
Details or accessories > Actions > specially adapted for grand pianos
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 2019.
Child Classifications
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- G10C 3/23 with hammers mounted above the strings, striking downwards since 2019 IPC+CPC Available in IPC and CPC