FR609706A - Improvements to switching devices used in automatic telephone systems - Google Patents

Improvements to switching devices used in automatic telephone systems

Info

Publication number
FR609706A
FR609706A FR609706DA FR609706A FR 609706 A FR609706 A FR 609706A FR 609706D A FR609706D A FR 609706DA FR 609706 A FR609706 A FR 609706A
Authority
FR
France
Prior art keywords
switching devices
devices used
telephone systems
automatic telephone
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
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 FR609706A publication Critical patent/FR609706A/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
FR609706D 1925-02-11 1926-01-20 Improvements to switching devices used in automatic telephone systems Expired FR609706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB386725A GB252057A (en) 1925-02-11 1925-02-11 Improvements in automatic telephone switching apparatus

Publications (1)

Publication Number Publication Date
FR609706A true FR609706A (en) 1926-08-20

Family

ID=9766371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR609706D Expired FR609706A (en) 1925-02-11 1926-01-20 Improvements to switching devices used in automatic telephone systems

Country Status (4)

Country Link
BE (1) BE331721A (en)
FR (1) FR609706A (en)
GB (1) GB252057A (en)
NL (1) NL17687C (en)

Also Published As

Publication number Publication date
GB252057A (en) 1926-05-11
NL17687C (en)
BE331721A (en)

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