FR932910A - Improvements to telephone or similar devices - Google Patents

Improvements to telephone or similar devices

Info

Publication number
FR932910A
FR932910A FR932910DA FR932910A FR 932910 A FR932910 A FR 932910A FR 932910D A FR932910D A FR 932910DA FR 932910 A FR932910 A FR 932910A
Authority
FR
France
Prior art keywords
telephone
similar devices
similar
devices
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 Laboratories Inc
Original Assignee
Automatic Electric Laboratories 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 Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Application granted granted Critical
Publication of FR932910A publication Critical patent/FR932910A/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)
FR932910D 1943-02-13 1946-08-27 Improvements to telephone or similar devices Expired FR932910A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2401/43A GB563504A (en) 1943-02-13 1943-02-13 Improvements in telephone or like systems

Publications (1)

Publication Number Publication Date
FR932910A true FR932910A (en) 1948-04-06

Family

ID=9738900

Family Applications (1)

Application Number Title Priority Date Filing Date
FR932910D Expired FR932910A (en) 1943-02-13 1946-08-27 Improvements to telephone or similar devices

Country Status (4)

Country Link
US (1) US2383541A (en)
FR (1) FR932910A (en)
GB (1) GB563504A (en)
NL (1) NL64785C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE467392A (en) * 1944-05-05
US2594719A (en) * 1945-05-19 1952-04-29 Automatic Elect Lab Voice-frequency telephone signaling system
US2468299A (en) * 1945-07-07 1949-04-26 Bell Telephone Labor Inc Supervisory signaling in telephone or like switching systems
US2557388A (en) * 1947-05-28 1951-06-19 Automatic Elect Lab Automatic telephone system employing finder switches for connecting calling lines tonumerical switches
US2655652A (en) * 1948-06-28 1953-10-13 John H Homrighous Multiplex time division telephone systems

Also Published As

Publication number Publication date
GB563504A (en) 1944-08-17
NL64785C (en)
US2383541A (en) 1945-08-28

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