Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
H04Q 3/62

for connecting to private branch exchanges

Full Title

Selecting arrangements (H04Q5/00 - H04Q11/00 take precedence) > Arrangements providing connection between main exchange and sub-exchange or satellite > for connecting to private branch exchanges

2 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open