FR1101161A - Multiple electrical switches, especially for telecommunications systems - Google Patents

Multiple electrical switches, especially for telecommunications systems

Info

Publication number: FR1101161A
Authority: FR; France
Prior art keywords: multiple electrical; electrical switches; telecommunications systems; telecommunications; switches
Prior art date: 1949-05-17
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

Inventor

Jacob Kruithof

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.)

International Standard Electric Corp

Original Assignee

International Standard Electric Corp

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.)

1953-09-25

Filing date

1949-05-17

Publication date

1955-10-04

1949-05-17 Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp

1955-10-04 Application granted granted Critical

1955-10-04 Publication of FR1101161A publication Critical patent/FR1101161A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
- H04M3/64—Arrangements for signalling the number or class of the calling line to the operator
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H67/00—Electrically-operated selector switches
- H01H67/22—Switches without multi-position wipers
- H01H67/26—Co-ordinate-type selector switches not having relays at cross-points but involving mechanical movement, e.g. cross-bar switch, code-bar switch

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Railway Tracks (AREA)
Train Traffic Observation, Control, And Security (AREA)
Switch Cases, Indication, And Locking (AREA)
Tumbler Switches (AREA)

FR1101161D 1953-09-25 1949-05-17 Multiple electrical switches, especially for telecommunications systems Expired FR1101161A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DEM20188A DE937510C (en)	1953-09-25	1953-09-25	Switch arrangement based on the crossbar principle

Publications (1)

Publication Number	Publication Date
FR1101161A true FR1101161A (en)	1955-10-04

Family

ID=6654750

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
FR1101161D Expired FR1101161A (en)	1953-09-25	1949-05-17	Multiple electrical switches, especially for telecommunications systems
FR66961D Expired FR66961E (en)	1953-09-25	1954-09-24	Multiple electrical switches, especially for telecommunications systems

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
FR66961D Expired FR66961E (en)	1953-09-25	1954-09-24	Multiple electrical switches, especially for telecommunications systems

Country Status (3)

Country	Link
DE (1)	DE937510C (en)
FR (2)	FR1101161A (en)
GB (1)	GB752622A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1541791A (en) *	1967-08-31	1968-10-11		Coordinate Selector Switch Improvements

1949
- 1949-05-17 FR FR1101161D patent/FR1101161A/en not_active Expired
1953
- 1953-09-25 DE DEM20188A patent/DE937510C/en not_active Expired
1954
- 1954-09-17 GB GB27007/54A patent/GB752622A/en not_active Expired
- 1954-09-24 FR FR66961D patent/FR66961E/en not_active Expired

Also Published As

Publication number	Publication date
FR66961E (en)	1957-11-04
GB752622A (en)	1956-07-11
DE937510C (en)	1956-01-05

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