FR752225A - Improvements to automatic or semi-automatic telephone systems, or other similar systems - Google Patents

Improvements to automatic or semi-automatic telephone systems, or other similar systems

Info

Publication number
FR752225A
FR752225A FR752225DA FR752225A FR 752225 A FR752225 A FR 752225A FR 752225D A FR752225D A FR 752225DA FR 752225 A FR752225 A FR 752225A
Authority
FR
France
Prior art keywords
automatic
systems
semi
similar
telephone systems
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
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR752225A publication Critical patent/FR752225A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
FR752225D 1932-08-19 1933-03-10 Improvements to automatic or semi-automatic telephone systems, or other similar systems Expired FR752225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US629452A US1960037A (en) 1932-08-19 1932-08-19 Telephone system

Publications (1)

Publication Number Publication Date
FR752225A true FR752225A (en) 1933-09-19

Family

ID=24523051

Family Applications (1)

Application Number Title Priority Date Filing Date
FR752225D Expired FR752225A (en) 1932-08-19 1933-03-10 Improvements to automatic or semi-automatic telephone systems, or other similar systems

Country Status (2)

Country Link
US (1) US1960037A (en)
FR (1) FR752225A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763724A (en) * 1946-10-11 1956-09-18 Automatic Elect Lab Telephone systems
FR991233A (en) * 1949-05-12 1951-10-03 Materiel Telephonique Improvements to automatic switching systems
US2807669A (en) * 1950-05-12 1957-09-24 North Electric Co Automatic telephone system
BE522252A (en) * 1952-08-23
US2748195A (en) * 1955-01-19 1956-05-29 Siemens Ag Automatic p. b. x telephone system
NL204130A (en) * 1955-02-17
US3066192A (en) * 1960-05-09 1962-11-27 Gen Dynamics Corp Time division multiplex telephone switching system having single and multiple party pre-address and priority check circuitry

Also Published As

Publication number Publication date
US1960037A (en) 1934-05-22

Similar Documents

Publication Publication Date Title
FR752225A (en) Improvements to automatic or semi-automatic telephone systems, or other similar systems
FR807879A (en) Improvements to automatic or semi-automatic telephone systems or similar systems
FR786377A (en) Improvements to automatic or semi-automatic telephone systems
FR698488A (en) Improvements to automatic or semi-automatic telephone systems
FR711122A (en) Improvements to automatic or semi-automatic telephone systems
FR806425A (en) Improvements to automatic or semi-automatic telephone systems or similar systems
FR817051A (en) Improvements to automatic or manual telephone systems or similar systems
FR687017A (en) Improvements to automatic or semi-automatic telephone systems
FR795587A (en) Improvements to telephone or similar systems
FR761926A (en) Improvements to telephone systems
FR753279A (en) Improvements to automatic telephone systems
FR811704A (en) Improvements to automatic or similar telephone systems
FR752395A (en) Improvements to telephone systems or other similar systems
FR749259A (en) Improvements to automatic or semi-automatic telephone systems, or other automatic switching systems
FR784148A (en) Improvements to automatic or semi-automatic systems or similar systems
FR729482A (en) Improvements to automatic or semi-automatic telephone systems
FR731952A (en) Improvements to automatic or semi-automatic telephone systems
FR736240A (en) Improvements to automatic or semi-automatic telephone systems
FR798788A (en) Improvements to automatic or semi-automatic telephone systems
FR766530A (en) Improvements to systems for central telephone offices of the automatic or semi-automatic type, or other similar offices
FR765940A (en) Improvements to systems for central telephone offices of the automatic or semi-automatic type, or other similar offices
FR807654A (en) Improvements to telephone or similar systems
FR817682A (en) Improvements to automatic or similar telephone systems
FR757534A (en) Improvements to automatic or semi-automatic telephone systems including prepaid stations
FR817699A (en) Improvements to telephone or similar systems