FR623537A - Improvements to telephone systems - Google Patents

Improvements to telephone systems

Info

Publication number
FR623537A
FR623537A FR623537DA FR623537A FR 623537 A FR623537 A FR 623537A FR 623537D A FR623537D A FR 623537DA FR 623537 A FR623537 A FR 623537A
Authority
FR
France
Prior art keywords
telephone systems
telephone
systems
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 FR623537A publication Critical patent/FR623537A/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)
  • Mobile Radio Communication Systems (AREA)
FR623537D 1925-09-23 1926-08-24 Improvements to telephone systems Expired FR623537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2379125A GB263226A (en) 1925-09-23 1925-09-23 Improvements in or relating to telephone systems

Publications (1)

Publication Number Publication Date
FR623537A true FR623537A (en) 1927-06-25

Family

ID=10201363

Family Applications (1)

Application Number Title Priority Date Filing Date
FR623537D Expired FR623537A (en) 1925-09-23 1926-08-24 Improvements to telephone systems

Country Status (2)

Country Link
FR (1) FR623537A (en)
GB (1) GB263226A (en)

Also Published As

Publication number Publication date
GB263226A (en) 1926-12-23

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