श्रेणी:संचार-E
नेविगेशन पर जाएँ
खोज पर जाएँ
"संचार-E" श्रेणी में पृष्ठ
इस श्रेणी में निम्नलिखित ४५ पृष्ठ हैं, कुल पृष्ठ ४५
E
- Ear-morse signal
- Earpiece
- Earth-tester
- Effective call
- Electrical measuring instrument
- Electro-magnet
- Electrocution
- Electromyogram electron
- Electronic air filter
- Elongated hole
- Embossed envelope
- Emergency call
- Emergency position (emergency board)
- Emergency route
- Empire airmail scheme
- Engaged
- Engaged tone
- Enquiry position
- Entering point
- Entire
- Enumeration return
- Envelope
- Equalizing charge
- Erect
- Error detection
- Error of service
- Excess stamp balance
- Exchange equipment
- Exchange of cash certificates
- Exchange of mail
- Exchange side
- Exchange switch board
- Excise revenue stamp
- Exhaust fan
- Experimental post office
- Experimental stamp
- Express bundle
- Express letter
- Extension connection
- Extension telephone
- External loop wiring
- External shifting
- Extra bag
- Extra departmental branch master
- Eyeball indicator