FR646973A - Telephone installation for collective connection - Google Patents

Telephone installation for collective connection

Info

Publication number
FR646973A
FR646973A FR646973DA FR646973A FR 646973 A FR646973 A FR 646973A FR 646973D A FR646973D A FR 646973DA FR 646973 A FR646973 A FR 646973A
Authority
FR
France
Prior art keywords
telephone installation
collective connection
collective
connection
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.)
HASLER CI DEVANT L ATELIER DES
Original Assignee
HASLER CI DEVANT L ATELIER DES
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 HASLER CI DEVANT L ATELIER DES filed Critical HASLER CI DEVANT L ATELIER DES
Application granted granted Critical
Publication of FR646973A publication Critical patent/FR646973A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems
    • H04Q5/14—Signalling by pulses
    • H04Q5/16—Signalling by pulses by predetermined number of pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Function (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR646973D 1927-02-14 1928-01-11 Telephone installation for collective connection Expired FR646973A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH646973X 1927-02-14
CH285364X 1927-02-14

Publications (1)

Publication Number Publication Date
FR646973A true FR646973A (en) 1928-11-19

Family

ID=25732514

Family Applications (1)

Application Number Title Priority Date Filing Date
FR646973D Expired FR646973A (en) 1927-02-14 1928-01-11 Telephone installation for collective connection

Country Status (2)

Country Link
FR (1) FR646973A (en)
GB (1) GB285364A (en)

Also Published As

Publication number Publication date
GB285364A (en) 1928-08-30

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