GB191320822A - Improvements in connection with Multiple Telephony. - Google Patents

Improvements in connection with Multiple Telephony.

Info

Publication number
GB191320822A
GB191320822A GB191320822DA GB191320822A GB 191320822 A GB191320822 A GB 191320822A GB 191320822D A GB191320822D A GB 191320822DA GB 191320822 A GB191320822 A GB 191320822A
Authority
GB
United Kingdom
Prior art keywords
connection
multiple telephony
instruments
leads
systems
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Hermann Tietgen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB191320822A publication Critical patent/GB191320822A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/08—Arrangements for interconnection between switching centres for phantom working

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Insulated Conductors (AREA)
GB191320822D 1913-09-15 1913-09-15 Improvements in connection with Multiple Telephony. Expired GB191320822A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191320822T 1913-09-15

Publications (1)

Publication Number Publication Date
GB191320822A true GB191320822A (en) 1913-11-20

Family

ID=32372429

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191320822D Expired GB191320822A (en) 1913-09-15 1913-09-15 Improvements in connection with Multiple Telephony.

Country Status (2)

Country Link
DE (1) DE268551C (enrdf_load_stackoverflow)
GB (1) GB191320822A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE268551C (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
GB191320822A (en) Improvements in connection with Multiple Telephony.
GB191310200A (en) Improvements in or relating to Telephone Systems.
GB191309593A (en) Improvements in or relating to Telephone Systems.
GB191312162A (en) Improvements in or relating to Telephone Systems.
GB191204061A (en) Improvements in or relating to Telegraphy and Telephony by Submarine Cables, Long Distance Overhead Lines and the like.
GB124582A (en) Improvements in or relating to Telephone Systems.
GB191215072A (en) Improvements in or relating to Telephone Systems.
CA169046A (en) Telephone transmission system
CA174416A (en) Telephone system
CA159518A (en) Telephone system
CA159645A (en) Telephone system
CA159741A (en) Telephone system
CA159748A (en) Telephone system
CA164217A (en) Telephone system
CA165670A (en) Telephone system
CA166115A (en) Telephone system
CA166116A (en) Telephone system
CA166250A (en) Telephone system
CA167706A (en) Telephone system
CA170646A (en) Telephone system
CA171099A (en) Telephone system
CA171776A (en) Telephone system
CA173672A (en) Telephone system
CA173673A (en) Telephone system
CA159346A (en) Telephone system