FR475756A - Connection device by selection channel for automatic or semi-automatic telephone systems - Google Patents

Connection device by selection channel for automatic or semi-automatic telephone systems

Info

Publication number
FR475756A
FR475756A FR475756DA FR475756A FR 475756 A FR475756 A FR 475756A FR 475756D A FR475756D A FR 475756DA FR 475756 A FR475756 A FR 475756A
Authority
FR
France
Prior art keywords
automatic
semi
connection device
telephone systems
selection channel
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
Gotthilf Ansgarius Betulander
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR475756A publication Critical patent/FR475756A/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
    • H01H67/22—Switches without multi-position wipers
    • H01H67/24—Co-ordinate-type relay switches having an individual electromagnet at each cross-point
FR475756D 1913-08-01 1914-07-28 Connection device by selection channel for automatic or semi-automatic telephone systems Expired FR475756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE475756X 1913-08-01

Publications (1)

Publication Number Publication Date
FR475756A true FR475756A (en) 1915-06-14

Family

ID=1513617

Family Applications (1)

Application Number Title Priority Date Filing Date
FR475756D Expired FR475756A (en) 1913-08-01 1914-07-28 Connection device by selection channel for automatic or semi-automatic telephone systems

Country Status (1)

Country Link
FR (1) FR475756A (en)

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