GB1430503A - Automatic telephone systems - Google Patents

Automatic telephone systems

Info

Publication number
GB1430503A
GB1430503A GB785574A GB785574A GB1430503A GB 1430503 A GB1430503 A GB 1430503A GB 785574 A GB785574 A GB 785574A GB 785574 A GB785574 A GB 785574A GB 1430503 A GB1430503 A GB 1430503A
Authority
GB
United Kingdom
Prior art keywords
line
network
relay
subscriber
connection
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
GB785574A
Other languages
English (en)
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.)
PLESS3Y CO Ltd
Original Assignee
PLESS3Y CO Ltd
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 PLESS3Y CO Ltd filed Critical PLESS3Y CO Ltd
Priority to GB785574A priority Critical patent/GB1430503A/en
Priority to ZA00750135A priority patent/ZA75135B/xx
Priority to AU77301/75A priority patent/AU485576B2/en
Priority to BR981/75A priority patent/BR7500981A/pt
Priority to FR7505241A priority patent/FR2262467B1/fr
Publication of GB1430503A publication Critical patent/GB1430503A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
GB785574A 1974-02-21 1974-02-21 Automatic telephone systems Expired GB1430503A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB785574A GB1430503A (en) 1974-02-21 1974-02-21 Automatic telephone systems
ZA00750135A ZA75135B (en) 1974-02-21 1975-01-07 Automatic telephone systems
AU77301/75A AU485576B2 (en) 1974-02-21 1975-01-14 Automatic telephone systems
BR981/75A BR7500981A (pt) 1974-02-21 1975-02-18 Permutacao de telefone automatica
FR7505241A FR2262467B1 (enExample) 1974-02-21 1975-02-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB785574A GB1430503A (en) 1974-02-21 1974-02-21 Automatic telephone systems

Publications (1)

Publication Number Publication Date
GB1430503A true GB1430503A (en) 1976-03-31

Family

ID=9841100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB785574A Expired GB1430503A (en) 1974-02-21 1974-02-21 Automatic telephone systems

Country Status (4)

Country Link
BR (1) BR7500981A (enExample)
FR (1) FR2262467B1 (enExample)
GB (1) GB1430503A (enExample)
ZA (1) ZA75135B (enExample)

Also Published As

Publication number Publication date
BR7500981A (pt) 1975-12-02
FR2262467B1 (enExample) 1981-10-09
AU7730175A (en) 1976-07-15
FR2262467A1 (enExample) 1975-09-19
ZA75135B (en) 1976-01-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee