BE823214A - Circuit de poste telephonique d'abonne - Google Patents

Circuit de poste telephonique d'abonne

Info

Publication number: BE823214A
Authority: BE; Belgium
Prior art keywords: telephone circuit; subscriber telephone; subscriber; circuit; telephone
Prior art date: 1973-12-12

Application number

BE151384A

Other languages

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.)

1973-12-12

Filing date

1974-12-11

Publication date

1975-04-01

1974-12-11 Application filed filed Critical

1975-04-01 Publication of BE823214A publication Critical patent/BE823214A/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
- H04M9/006—Exchange line circuits

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Sub-Exchange Stations And Push- Button Telephones (AREA)
Interface Circuits In Exchanges (AREA)

BE151384A 1973-12-12 1974-12-11 Circuit de poste telephonique d'abonne BE823214A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US426648A US3916116A (en)	1973-12-12	1973-12-12	Hold bridge circuit

Publications (1)

Publication Number	Publication Date
BE823214A true BE823214A (fr)	1975-04-01

Family

ID=23691644

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE151384A BE823214A (fr)	1973-12-12	1974-12-11	Circuit de poste telephonique d'abonne

Country Status (12)

Country	Link
US (1)	US3916116A (nl)
JP (1)	JPS584508B2 (nl)
BE (1)	BE823214A (nl)
CA (1)	CA1006995A (nl)
CH (1)	CH594335A5 (nl)
DE (1)	DE2458298C2 (nl)
ES (1)	ES432840A1 (nl)
FR (1)	FR2254920B1 (nl)
GB (1)	GB1490869A (nl)
IT (1)	IT1026881B (nl)
NL (1)	NL177547C (nl)
SE (1)	SE7415136L (nl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5184504A (nl) *	1975-01-21	1976-07-23	Iwatsu Electric Co Ltd
JPS52111302A (en) *	1976-03-15	1977-09-19	Taiko Denki Seisakusho:Kk	Connecting system of button telephone set
US4132860A (en) *	1977-08-01	1979-01-02	Crest Industries, Inc.	Hold control for a key telephone system
WO1979000078A1 (en) *	1977-08-01	1979-02-22	H Rasmussen	Hold control for a key telephone system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2862062A (en) *	1956-05-22	1958-11-25	Bell Telephone Labor Inc	Holding arrangement for universaltype line circuit
US3283083A (en) *	1963-03-13	1966-11-01	American Telephone & Telegraph	Telephone subscriber's line circuit
US3436488A (en) *	1966-03-17	1969-04-01	Bell Telephone Labor Inc	Line circuit for a key telephone system utilizing a single multifunction supervisory relay
DE1562142C3 (de) *	1968-02-29	1975-05-15	Siemens Ag, 1000 Berlin U. 8000 Muenchen	Schaltungsanordnung für Chef-Sekretärstationen in Fernsprechnebenstellenanlagen
IL30070A (en) *	1968-05-24	1971-05-26	Telrad Telecommunication & Ele	Line grip circuit for multi-line telephone system
JPS4932003B1 (nl) *	1969-03-31	1974-08-27
US3725600A (en) *	1969-12-18	1973-04-03	American Telephone & Telegraph	Communication call holding circuit
US3733442A (en) *	1971-01-18	1973-05-15	Northern Electric Co	Hold circuit for multi-line key telephone system
US3764752A (en) *	1972-01-11	1973-10-09	Teltronics Inc	Telephone line card system

1973
- 1973-12-12 US US426648A patent/US3916116A/en not_active Expired - Lifetime
1974
- 1974-10-28 CA CA212,366A patent/CA1006995A/en not_active Expired
- 1974-12-03 SE SE7415136A patent/SE7415136L/xx unknown
- 1974-12-09 GB GB53237/74A patent/GB1490869A/en not_active Expired
- 1974-12-09 IT IT30311/74A patent/IT1026881B/it active
- 1974-12-10 DE DE2458298A patent/DE2458298C2/de not_active Expired
- 1974-12-11 CH CH1650474A patent/CH594335A5/xx not_active IP Right Cessation
- 1974-12-11 FR FR7440859A patent/FR2254920B1/fr not_active Expired
- 1974-12-11 BE BE151384A patent/BE823214A/xx not_active IP Right Cessation
- 1974-12-11 NL NLAANVRAGE7416124,A patent/NL177547C/nl not_active IP Right Cessation
- 1974-12-12 JP JP49142089A patent/JPS584508B2/ja not_active Expired
- 1974-12-12 ES ES432840A patent/ES432840A1/es not_active Expired

Also Published As

Publication number	Publication date
US3916116A (en)	1975-10-28
CH594335A5 (nl)	1978-01-13
GB1490869A (en)	1977-11-02
DE2458298C2 (de)	1984-04-26
SE7415136L (nl)	1975-06-13
FR2254920B1 (nl)	1977-04-08
ES432840A1 (es)	1976-11-01
JPS5092613A (nl)	1975-07-24
IT1026881B (it)	1978-10-20
JPS584508B2 (ja)	1983-01-26
NL177547B (nl)	1985-05-01
CA1006995A (en)	1977-03-15
DE2458298A1 (de)	1975-06-19
FR2254920A1 (nl)	1975-07-11
NL177547C (nl)	1985-10-01
AU7613474A (en)	1976-06-10
NL7416124A (nl)	1975-06-16

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Legal Events

Date	Code	Title	Description
1990-06-30	RE	Patent lapsed	Owner name: WESTERN ELECTRIC CY INC. Effective date: 19891231

Date

Code

Title

Description

1990-06-30

Patent lapsed

Owner name: WESTERN ELECTRIC CY INC.

Effective date: 19891231