Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H04Q 1/48

Induced-current signalling arrangements

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Details of selecting apparatus or arrangements > Electrical details > Signalling arrangements; Manipulation of signalling currents > Induced-current signalling arrangements

CPC:

Details of selecting apparatus or arrangements > Electrical details > Signalling arrangements; Manipulation of signalling currents (multiplex systems providing for calling or supervisory signals H04J1/14, H04J3/12) > Induced-current signalling arrangements

No child classifications to compare. This is a leaf node in both IPC and CPC.