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DIFF Subgroup
H04L 25/46

using tuning forks or vibrating reeds

Introduced: September 1968

Full Title

Baseband systems > Synchronous or start-stop systems, e.g. for Baudot code > Transmitting circuits; Receiving circuits > using tuning forks or vibrating reeds

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