GB1375579A - - Google Patents

Info

Publication number
GB1375579A
GB1375579A GB5122671A GB5122671A GB1375579A GB 1375579 A GB1375579 A GB 1375579A GB 5122671 A GB5122671 A GB 5122671A GB 5122671 A GB5122671 A GB 5122671A GB 1375579 A GB1375579 A GB 1375579A
Authority
GB
United Kingdom
Prior art keywords
nov
remote location
outside subscriber
circuit
contact
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
GB5122671A
Other languages
English (en)
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 filed Critical
Publication of GB1375579A publication Critical patent/GB1375579A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Alarm Systems (AREA)
  • Devices For Supply Of Signal Current (AREA)
GB5122671A 1970-11-05 1971-11-04 Expired GB1375579A (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8726770A 1970-11-05 1970-11-05

Publications (1)

Publication Number Publication Date
GB1375579A true GB1375579A (enExample) 1974-11-27

Family

ID=22204134

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5122671A Expired GB1375579A (enExample) 1970-11-05 1971-11-04

Country Status (10)

Country Link
AU (1) AU464402B2 (enExample)
BE (1) BE774634A (enExample)
CA (1) CA932884A (enExample)
CH (1) CH555574A (enExample)
DE (1) DE2155156A1 (enExample)
ES (1) ES396721A1 (enExample)
FR (1) FR2112461B1 (enExample)
GB (1) GB1375579A (enExample)
IT (1) IT939691B (enExample)
NL (1) NL7115039A (enExample)

Also Published As

Publication number Publication date
NL7115039A (enExample) 1972-05-09
AU3500071A (en) 1973-05-03
AU464402B2 (en) 1975-08-28
CA932884A (en) 1973-08-28
BE774634A (fr) 1972-02-14
FR2112461B1 (enExample) 1976-03-26
CH555574A (fr) 1974-10-31
IT939691B (it) 1973-02-10
FR2112461A1 (enExample) 1972-06-16
ES396721A1 (es) 1974-05-16
DE2155156A1 (de) 1972-05-10

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Legal Events

Date Code Title Description
429A Application made for amendment of specification (sect. 29/1949)
429C Application to amend the specification withdrawn (sect. 29/1949)
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees