telegraph equipment
preferred label: تجهیزات تلگراف @fa
related: repeaters
related: transmitters
related: receivers
related: telegraph systems
type: Concept
narrower: teletypewriter equipment
broader: telecommunication equipment

repeaters
preferred label: تکرارکننده‌ها @fa
type: Concept
related: telegraph equipment

transmitters
preferred label: فرستنده‌ها @fa
type: Concept
related: telegraph equipment

receivers
preferred label: گیرنده‌ها @fa
type: Concept
related: telegraph equipment

telegraph systems
preferred label: سیستم‌های تلگراف @fa
type: Concept
related: telegraph equipment

teletypewriter equipment
preferred label: تجهیزات ماشین‌تحریر دوربرد @fa
type: Concept
broader: telegraph equipment

telecommunication equipment
preferred label: تجهیزات مخابراتی @fa
type: Concept
narrower: telegraph equipment