HSektion H — ElektrotechnikELECTRICITY
disable hierarchy mode: H04H04Elektrische NachrichtentechnikELECTRIC COMMUNICATION TECHNIQUE
disable hierarchy mode: H04QLink to definition of IPC symbol: H04QH04QWähltechnik (Schalter, Relais, Wähler H01H; drahtlose Nachrichtenübertragungsnetzwerke H04W) [1, 2009.01]SELECTING (switches, relays, selectors H01H;  wireless communication networks H04W) [1, 2009.01]
disable hierarchy mode: H04Q 1/00Link to definition of IPC symbol: H04Q 1/00Link to Depatisnet beginner's search with IPC symbol: H04Q 1/00H04Q 1/00Einzelheiten von Wähleinrichtungen oder -anordnungen [1, 2006.01]Details of selecting apparatus or arrangements [1, 2006.01]
disable hierarchy mode: H04Q 1/02Link to Depatisnet beginner's search with IPC symbol: H04Q 1/02H04Q 1/02
. Bauliche Einzelheiten [1, 2006.01]
. Constructional details [1, 2006.01]
disable hierarchy mode: H04Q 1/10Link to Depatisnet beginner's search with IPC symbol: H04Q 1/10H04Q 1/10
. . Aufbau von Vermittlungsstationen [1, 2006.01]
. . Exchange station construction [1, 2006.01]