FR518763A - Enhancements to automatic switches for telephone systems - Google Patents

Enhancements to automatic switches for telephone systems

Info

Publication number
FR518763A
FR518763A FR518763A FR518763DA FR518763A FR 518763 A FR518763 A FR 518763A FR 518763 A FR518763 A FR 518763A FR 518763D A FR518763D A FR 518763DA FR 518763 A FR518763 A FR 518763A
Authority
FR
France
Prior art keywords
enhancements
telephone systems
automatic switches
switches
automatic
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
FR518763A
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 FR518763A publication Critical patent/FR518763A/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
    • H01H67/12—Linear-motion switches
FR518763A 1917-10-20 1920-07-02 Enhancements to automatic switches for telephone systems Expired FR518763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US518763XA 1917-10-20 1917-10-20

Publications (1)

Publication Number Publication Date
FR518763A true FR518763A (en) 1921-05-31

Family

ID=21973898

Family Applications (1)

Application Number Title Priority Date Filing Date
FR518763A Expired FR518763A (en) 1917-10-20 1920-07-02 Enhancements to automatic switches for telephone systems

Country Status (1)

Country Link
FR (1) FR518763A (en)

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