FR577962A - Improvements to selector switches for automatic telephone central offices - Google Patents

Improvements to selector switches for automatic telephone central offices

Info

Publication number
FR577962A
FR577962A FR577962DA FR577962A FR 577962 A FR577962 A FR 577962A FR 577962D A FR577962D A FR 577962DA FR 577962 A FR577962 A FR 577962A
Authority
FR
France
Prior art keywords
selector switches
automatic telephone
central offices
telephone central
offices
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 FR577962A publication Critical patent/FR577962A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H63/00—Details of electrically-operated selector switches
    • H01H63/02—Contacts; Wipers; Connections thereto
FR577962D 1924-02-29 1924-02-29 Improvements to selector switches for automatic telephone central offices Expired FR577962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR577962T 1924-02-29

Publications (1)

Publication Number Publication Date
FR577962A true FR577962A (en) 1924-09-13

Family

ID=8955080

Family Applications (1)

Application Number Title Priority Date Filing Date
FR577962D Expired FR577962A (en) 1924-02-29 1924-02-29 Improvements to selector switches for automatic telephone central offices

Country Status (1)

Country Link
FR (1) FR577962A (en)

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