Preferred term
TK6401 Telephone systems
Broader concept
Broader conceptEntry terms
Alternative terms for the concept.- Telephony
Note
Notes- Here are entered general works on telephone systems. Works on telephone systems in a particular place are entered under [Telephone--[local subdivision].]
Group members
Members of the groupNotation
Code that uniquely identifies a concept within a concept scheme.- TK6401
URI
http://www.yso.fi/onto/lcsh/sh85133438