FR449234A - Telephone system - Google Patents

Telephone system

Info

Publication number
FR449234A
FR449234A FR449234A FR449234DA FR449234A FR 449234 A FR449234 A FR 449234A FR 449234 A FR449234 A FR 449234A FR 449234D A FR449234D A FR 449234DA FR 449234 A FR449234 A FR 449234A
Authority
FR
France
Prior art keywords
telephone system
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
FR449234A
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 FR449234A publication Critical patent/FR449234A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
FR449234A 1911-06-28 1912-06-27 Telephone system Expired FR449234A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63569711A US1185510A (en) 1911-06-28 1911-06-28 Telephone system.

Publications (1)

Publication Number Publication Date
FR449234A true FR449234A (en) 1913-02-20

Family

ID=3253475

Family Applications (1)

Application Number Title Priority Date Filing Date
FR449234A Expired FR449234A (en) 1911-06-28 1912-06-27 Telephone system

Country Status (4)

Country Link
US (1) US1185510A (en)
FR (1) FR449234A (en)
GB (1) GB191215072A (en)
NL (1) NL1542C (en)

Also Published As

Publication number Publication date
NL1542C (en) 1916-09-15
GB191215072A (en) 1913-06-26
US1185510A (en) 1916-05-30

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