FR970842A - Automatic or semi-automatic telephone systems or other telecommunications systems incorporating mechanically driven switches - Google Patents

Automatic or semi-automatic telephone systems or other telecommunications systems incorporating mechanically driven switches

Info

Publication number
FR970842A
FR970842A FR970842DA FR970842A FR 970842 A FR970842 A FR 970842A FR 970842D A FR970842D A FR 970842DA FR 970842 A FR970842 A FR 970842A
Authority
FR
France
Prior art keywords
automatic
semi
mechanically driven
systems
driven switches
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)
Inventor
Martinus Den Hertog
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.)
Filing date
Publication date
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR970842A publication Critical patent/FR970842A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H67/00—Electrically-operated selector switches
    • H01H67/02—Multi-position wiper switches
    • H01H67/04—Multi-position wiper switches having wipers movable only in one direction for purpose of selection
    • H01H67/06—Rotary switches, i.e. having angularly movable wipers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • 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)
  • Motor And Converter Starters (AREA)
FR970842D 1947-01-07 1948-07-29 Automatic or semi-automatic telephone systems or other telecommunications systems incorporating mechanically driven switches Expired FR970842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2557638X 1947-01-07

Publications (1)

Publication Number Publication Date
FR970842A true FR970842A (en) 1951-01-09

Family

ID=19874732

Family Applications (1)

Application Number Title Priority Date Filing Date
FR970842D Expired FR970842A (en) 1947-01-07 1948-07-29 Automatic or semi-automatic telephone systems or other telecommunications systems incorporating mechanically driven switches

Country Status (5)

Country Link
US (1) US2557638A (en)
BE (1) BE478817A (en)
CH (1) CH269664A (en)
FR (1) FR970842A (en)
NL (1) NL69440C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269523A (en) * 1978-04-10 1981-05-26 Kay Joel Brian Pencils and pencil caps

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2068726A (en) * 1937-01-26 Telephone system
GB181826A (en) * 1921-10-19 1922-06-19 Fritz Aldendorff Electromechanically controlled telephone system
US1799485A (en) * 1928-12-10 1931-04-07 Reserve Holding Co Telephone system
US2419540A (en) * 1943-08-28 1947-04-29 Int Standard Electric Corp Telecommunication switching system

Also Published As

Publication number Publication date
US2557638A (en) 1951-06-19
NL69440C (en)
CH269664A (en) 1950-07-15
BE478817A (en)

Similar Documents

Publication Publication Date Title
FR58558E (en) Telecommunications switching systems
FR1013604A (en) Switching system
FR938994A (en) Improvements to electrical signaling and switching systems
FR970842A (en) Automatic or semi-automatic telephone systems or other telecommunications systems incorporating mechanically driven switches
CH283549A (en) Switching device for stepped adjustment switch.
FR1059891A (en) Fully electronic automatic switching systems
FR65204E (en) Electrical signaling systems
FR988281A (en) Telephone switching system
FR931692A (en) Improvements to automatic telephone switching systems
FR977905A (en) Telephone system with private automatic exchanges comprising from twenty to forty lines
FR987582A (en) Selector switches for telephone or other switching systems
FR883978A (en) Electrical, telephone or similar switching systems
FR66206E (en) Telephone switching systems
FR988325A (en) Automatic switching system with pulse circuits
FR968971A (en) Telegraph switching system
FR1011703A (en) Switching system improvements
CH278395A (en) Relay with mercury contacts.
FR929659A (en) Switching systems
FR59526E (en) Automatic switching system applicable to telephony
FR999670A (en) Electrical telecommunication systems
CH288596A (en) Switching installation for telecommunication exchange.
FR57585E (en) Improvements to selector switch couplings or clutches used in telecommunication systems
AT175289B (en) Automatic telecommunications switching system
FR1101161A (en) Multiple electrical switches, especially for telecommunications systems
FR985238A (en) Central office telecommunications systems