FR625411A - Improvements to automatic telephone systems - Google Patents

Improvements to automatic telephone systems

Info

Publication number
FR625411A
FR625411A FR625411DA FR625411A FR 625411 A FR625411 A FR 625411A FR 625411D A FR625411D A FR 625411DA FR 625411 A FR625411 A FR 625411A
Authority
FR
France
Prior art keywords
telephone systems
automatic telephone
automatic
systems
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 Inc
Original Assignee
Automatic Electric Inc
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 Inc filed Critical Automatic Electric Inc
Application granted granted Critical
Publication of FR625411A publication Critical patent/FR625411A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
FR625411D 1926-11-25 1926-11-25 Improvements to automatic telephone systems Expired FR625411A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR625411T 1926-11-25

Publications (1)

Publication Number Publication Date
FR625411A true FR625411A (en) 1927-08-10

Family

ID=8987708

Family Applications (1)

Application Number Title Priority Date Filing Date
FR625411D Expired FR625411A (en) 1926-11-25 1926-11-25 Improvements to automatic telephone systems

Country Status (2)

Country Link
US (1) US1645636A (en)
FR (1) FR625411A (en)

Also Published As

Publication number Publication date
US1645636A (en) 1927-10-18

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