FR72720E - Automatic switching system usable in automatic telephony - Google Patents

Automatic switching system usable in automatic telephony

Info

Publication number
FR72720E
FR72720E FR736556A FR736556A FR72720E FR 72720 E FR72720 E FR 72720E FR 736556 A FR736556 A FR 736556A FR 736556 A FR736556 A FR 736556A FR 72720 E FR72720 E FR 72720E
Authority
FR
France
Prior art keywords
automatic
switching system
telephony
system usable
automatic switching
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
FR736556A
Other languages
French (fr)
Inventor
Albert Hemel
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
Priority claimed from GB803551A external-priority patent/GB695497A/en
Priority claimed from GB2273953A external-priority patent/GB780831A/en
Priority claimed from GB100554A external-priority patent/GB753357A/en
Priority claimed from GB953755A external-priority patent/GB769617A/en
Priority claimed from US578823A external-priority patent/US2828365A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to FR736556A priority Critical patent/FR72720E/en
Application granted granted Critical
Publication of FR72720E publication Critical patent/FR72720E/en
Priority claimed from GB37/75A external-priority patent/GB1488174A/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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/007—Sequential discharge tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR736556A 1951-04-06 1957-04-16 Automatic switching system usable in automatic telephony Expired FR72720E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR736556A FR72720E (en) 1951-04-06 1957-04-16 Automatic switching system usable in automatic telephony

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GB803551A GB695497A (en) 1951-04-06 1951-04-06 Improvements in or relating to automatic telecommunication exchange system
GB2273953A GB780831A (en) 1953-08-18 1953-08-18 Improvements in or relating to electrical switches employing bi-directional transistors
GB100554A GB753357A (en) 1954-01-13 1954-01-13 Improvements in or relating to electric code translators
GB953755A GB769617A (en) 1955-04-01 1955-04-01 Improvements in or relating to electronic registering equipment
US578823A US2828365A (en) 1956-04-17 1956-04-17 Relayless line circuit
FR736556A FR72720E (en) 1951-04-06 1957-04-16 Automatic switching system usable in automatic telephony
GB37/75A GB1488174A (en) 1974-01-10 1975-01-02 Electrical penetration assemblies

Publications (1)

Publication Number Publication Date
FR72720E true FR72720E (en) 1960-07-22

Family

ID=27562343

Family Applications (1)

Application Number Title Priority Date Filing Date
FR736556A Expired FR72720E (en) 1951-04-06 1957-04-16 Automatic switching system usable in automatic telephony

Country Status (1)

Country Link
FR (1) FR72720E (en)

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