DIFF Subgroup
H01C 17/22 adapted for trimming
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Apparatus or processes specially adapted for manufacturing resistors > adapted for trimming
CPC:
Apparatus or processes specially adapted for manufacturing resistors (providing fillings for housings or enclosures H01C1/02; reducing insulation surrounding a resistor to powder H01C1/03; manufacture of thermally variable resistors H01C7/02, H01C7/04) > adapted for trimming
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
3 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1974.
Child Classifications
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- H01C 17/23 by opening or closing resistor geometric tracks of predetermined resistive values, since 1995 IPC+CPC Available in IPC and CPC
- H01C 17/232 Adjusting the temperature coefficient; Adjusting value of resistance by adjusting temperature coefficient of resistance since 1995 IPC+CPC Available in IPC and CPC
- H01C 17/235 Initial adjustment of potentiometer parts for calibration since 1995 IPC+CPC Available in IPC and CPC
- H01C 17/24 by removing or adding resistive material (H01C17/23, H01C17/232, H01C17/235 take precedence) since 1974 +4 CPC IPC+CPC Available in IPC and CPC