FR748606A - Improvements to telephone installations - Google Patents

Improvements to telephone installations

Info

Publication number
FR748606A
FR748606A FR748606DA FR748606A FR 748606 A FR748606 A FR 748606A FR 748606D A FR748606D A FR 748606DA FR 748606 A FR748606 A FR 748606A
Authority
FR
France
Prior art keywords
telephone installations
installations
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of FR748606A publication Critical patent/FR748606A/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)
FR748606D 1933-01-03 1933-01-07 Improvements to telephone installations Expired FR748606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22733A GB412932A (en) 1933-01-03 1933-01-03 Improvements in telephone systems

Publications (1)

Publication Number Publication Date
FR748606A true FR748606A (en) 1933-07-06

Family

ID=9700643

Family Applications (1)

Application Number Title Priority Date Filing Date
FR748606D Expired FR748606A (en) 1933-01-03 1933-01-07 Improvements to telephone installations

Country Status (2)

Country Link
FR (1) FR748606A (en)
GB (1) GB412932A (en)

Also Published As

Publication number Publication date
GB412932A (en) 1934-07-03

Similar Documents

Publication Publication Date Title
FR774177A (en) Improvements to telephone installations
FR748606A (en) Improvements to telephone installations
FR761034A (en) Improvements to taps
FR778725A (en) Improvements to taps
FR788265A (en) Improvements to faucets
FR767980A (en) Improvements to disconnectors
FR43789E (en) Improvements to taps
FR764807A (en) Improvements to jacks
FR752213A (en) Improvements to bras
FR773477A (en) Improvements to economizers
FR758941A (en) Improvements to pumps
FR779146A (en) Improvements to telephone microphones
FR770520A (en) Improvements to automatic telephone systems
FR770669A (en) Improvements to automatic telephone systems
FR732129A (en) Improvements to telephone set installations
FR769657A (en) Improvements to metal cables
FR776302A (en) Improvements to contactors-circuit breakers
FR751519A (en) Improvements to gasometers
FR776682A (en) Improvements to tri-carriers
FR761354A (en) Improvements to jockstrap
FR758109A (en) Improvements to corset-sheaths
FR799079A (en) Improvements to electrical installations
FR781214A (en) Improvements to static converters
FR753443A (en) Improvements to sinks
FR726872A (en) Improvements to telephone sets