FR452540A - Automatic or semi-automatic telephone system - Google Patents

Automatic or semi-automatic telephone system

Info

Publication number
FR452540A
FR452540A FR452540DA FR452540A FR 452540 A FR452540 A FR 452540A FR 452540D A FR452540D A FR 452540DA FR 452540 A FR452540 A FR 452540A
Authority
FR
France
Prior art keywords
automatic
semi
telephone system
automatic telephone
telephone
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.)
Automatic Electric Co
Original Assignee
Automatic Electric Co
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 Automatic Electric Co filed Critical Automatic Electric Co
Application granted granted Critical
Publication of FR452540A publication Critical patent/FR452540A/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
    • H01H67/14—Multi-position wiper switches having wipers movable in two mutually perpendicular directions for purpose of selection
    • H01H67/16—Multi-position wiper switches having wipers movable in two mutually perpendicular directions for purpose of selection one motion being rotary and the other being parallel to the axis of rotation, e.g. Strowger or "up and around" switches
FR452540D 1912-06-15 1912-09-07 Automatic or semi-automatic telephone system Expired FR452540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US452540TA 1912-06-15 1912-06-15

Publications (1)

Publication Number Publication Date
FR452540A true FR452540A (en) 1913-05-19

Family

ID=32641304

Family Applications (1)

Application Number Title Priority Date Filing Date
FR452540D Expired FR452540A (en) 1912-06-15 1912-09-07 Automatic or semi-automatic telephone system

Country Status (2)

Country Link
FR (1) FR452540A (en)
GB (2) GB191213970A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE761538C (en) * 1941-12-06 1954-02-01 Siemens & Halske A G Selector for telephone systems with a longitudinal and rotatable axis and a common drive for both directions of movement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE761538C (en) * 1941-12-06 1954-02-01 Siemens & Halske A G Selector for telephone systems with a longitudinal and rotatable axis and a common drive for both directions of movement

Also Published As

Publication number Publication date
GB191312035A (en) 1914-05-25
GB191213970A (en) 1913-06-16

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