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PCE
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IPC Subgroup
H04Q 3/32

Circuit arrangements for second or subsequent stages of hunting switching

Introduced: September 1968

Last revised: January 2006

Full Title

Selecting arrangements > Circuit arrangements for second or subsequent stages of hunting switching

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC COMMUNICATION TECHNIQUE
Subclass:
SELECTING

4 direct subcodes

Child Classifications

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  • H04Q 3/34 for the second preselection stage
  • H04Q 3/36 for the second line-finder stage
  • H04Q 3/38 for stages after the group-selector stage
  • H04Q 3/4 for stages after the line selector, e.g. for extension selector