CPC Subgroup
H01C 17/24 by removing or adding resistive material (H01C17/23, H01C17/232, H01C17/235 take precedence)
Full Title
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 > by removing or adding resistive material (H01C17/23, H01C17/232, H01C17/235 take precedence)
6 direct subcodes
Child Classifications
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- H01C 17/242 by laser
- H01C 17/245 by mechanical means, e.g. sand-blasting, cutting or ultrasonic treatment