GB1259302A - - Google Patents

Info

Publication number
GB1259302A
GB1259302A GB1259302DA GB1259302A GB 1259302 A GB1259302 A GB 1259302A GB 1259302D A GB1259302D A GB 1259302DA GB 1259302 A GB1259302 A GB 1259302A
Authority
GB
United Kingdom
Prior art keywords
exchange
ringing
subscriber
transistor
signal
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)
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 GB1259302A publication Critical patent/GB1259302A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
GB1259302D 1968-01-26 1969-01-23 Expired GB1259302A (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70078468A 1968-01-26 1968-01-26

Publications (1)

Publication Number Publication Date
GB1259302A true GB1259302A (OSRAM) 1972-01-05

Family

ID=24814855

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1259302D Expired GB1259302A (OSRAM) 1968-01-26 1969-01-23

Country Status (6)

Country Link
JP (1) JPS4938041B1 (OSRAM)
BE (1) BE727343A (OSRAM)
CH (1) CH505523A (OSRAM)
ES (1) ES362901A1 (OSRAM)
FR (1) FR2000800A1 (OSRAM)
GB (1) GB1259302A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1093561B (it) * 1978-04-04 1985-07-19 Mauri & C Snc Autoveicoli articolato per trasproto pubblico

Also Published As

Publication number Publication date
FR2000800A1 (OSRAM) 1969-09-12
DE1903141B2 (de) 1972-10-19
DE1903141A1 (de) 1969-08-28
BE727343A (OSRAM) 1969-07-24
ES362901A1 (es) 1970-09-01
CH505523A (de) 1971-03-31
JPS4938041B1 (OSRAM) 1974-10-15

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee