GB191302397A - Improvements in Telephone Systems. - Google Patents

Improvements in Telephone Systems.

Info

Publication number
GB191302397A
GB191302397A GB191302397DA GB191302397A GB 191302397 A GB191302397 A GB 191302397A GB 191302397D A GB191302397D A GB 191302397DA GB 191302397 A GB191302397 A GB 191302397A
Authority
GB
United Kingdom
Prior art keywords
telephone systems
telephone
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
Inventor
William John Rickets
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 GB191302397A publication Critical patent/GB191302397A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
GB191302397D 1911-02-20 1913-01-29 Improvements in Telephone Systems. Expired GB191302397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191104282T 1911-02-20

Publications (1)

Publication Number Publication Date
GB191302397A true GB191302397A (en) 1913-04-10

Family

ID=32893969

Family Applications (2)

Application Number Title Priority Date Filing Date
GB191104282D Expired GB191104282A (en) 1911-02-20 1911-02-20 Improvements in Telephone Systems.
GB191302397D Expired GB191302397A (en) 1911-02-20 1913-01-29 Improvements in Telephone Systems.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB191104282D Expired GB191104282A (en) 1911-02-20 1911-02-20 Improvements in Telephone Systems.

Country Status (1)

Country Link
GB (2) GB191104282A (en)

Also Published As

Publication number Publication date
GB191104282A (en) 1911-12-14

Similar Documents

Publication Publication Date Title
US1024221A (en) Grouting-machine.
US1004308A (en) Power-belt.
GB191302397A (en) Improvements in Telephone Systems.
US1126319A (en) Dipper-front.
GB191215072A (en) Improvements in or relating to Telephone Systems.
GB191110926A (en) Improvements in or relating to Telephone Systems.
GB191121924A (en) Improvements in Common Battery Telephone Systems.
GB191307221A (en) Improvements in Telephone Systems.
GB102680A (en) Improvements in Telephone Systems.
GB103173A (en) Improvements in Telephone Systems.
AU82216B (en) Improvements. in telephone systems
GB103732A (en) Improvements in Telephone Systems.
GB107042A (en) Improvements in Telephone Systems.
GB107236A (en) Improvements in Telephone Systems.
GB191112117A (en) Improvements in Semi-automatic Telephone Exchange Systems.
GB100941A (en) Improvements in Telephone Systems.
GB103880A (en) Improvements in Telephone Systems.
AU2007710B (en) Improvements in telephone systems
AU194411A (en) Improvements in semiautomatic telephone systems
GB191022959A (en) Improvements in Automatic Telephone Systems.
GB191310200A (en) Improvements in or relating to Telephone Systems.
GB191307130A (en) Improvements in Telephone Circuits.
AU82216A (en) Improvements. in telephone systems
GB104726A (en) Improvements in Semi-automatic Telephone Systems.
GB191100055A (en) Improvements in Telegraphy.