DIFF Subgroup
H03M 11/22 Static coding (H03M11/26 takes precedence)
Introduced: January 1990
Title
Titles differ between systems:
IPC: Static coding
CPC: Static coding (H03M11/26 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys > Static coding
CPC:
Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys (keyboard switch arrangements, structural association of coders and keyboards H01H13/70, H03K17/94) > Static coding (H03M11/26 takes precedence)
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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