FR30806E - Automatic telephone system - Google Patents

Automatic telephone system

Info

Publication number
FR30806E
FR30806E FR30806DA FR30806E FR 30806 E FR30806 E FR 30806E FR 30806D A FR30806D A FR 30806DA FR 30806 E FR30806 E FR 30806E
Authority
FR
France
Prior art keywords
telephone system
automatic telephone
automatic
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR30806E publication Critical patent/FR30806E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • 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)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
FR30806D 1924-05-19 1925-05-18 Automatic telephone system Expired FR30806E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US476279XA 1924-05-19 1924-05-19

Publications (1)

Publication Number Publication Date
FR30806E true FR30806E (en) 1926-10-02

Family

ID=21950023

Family Applications (4)

Application Number Title Priority Date Filing Date
FR600994D Expired FR600994A (en) 1924-05-19
FR30806D Expired FR30806E (en) 1924-05-19 1925-05-18 Automatic telephone system
FR32350D Expired FR32350E (en) 1924-05-19 1926-08-04 Automatic telephone system
FR32351D Expired FR32351E (en) 1924-05-19 1926-08-05 Automatic telephone system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR600994D Expired FR600994A (en) 1924-05-19

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR32350D Expired FR32350E (en) 1924-05-19 1926-08-04 Automatic telephone system
FR32351D Expired FR32351E (en) 1924-05-19 1926-08-05 Automatic telephone system

Country Status (4)

Country Link
US (1) US1681913A (en)
DE (1) DE476279C (en)
FR (4) FR30806E (en)
GB (1) GB263210A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3919238A1 (en) * 1989-06-13 1990-12-20 Voest Alpine Ind Anlagen RINSING DEVICE FOR A METALLURGICAL VESSEL

Also Published As

Publication number Publication date
DE476279C (en) 1929-05-21
US1681913A (en) 1928-08-21
FR32351E (en) 1927-11-28
FR600994A (en) 1926-02-19
FR32350E (en) 1927-11-28
GB263210A (en)

Similar Documents

Publication Publication Date Title
FR782553A (en) Automatic telephone system
FR32350E (en) Automatic telephone system
FR583029A (en) Automatic telephone system
FR662285A (en) Automatic lubrication system
FR587112A (en) Automatic clutch
FR640560A (en) Automatic telephone system
FR594329A (en) Automatic telephone system
DK35360C (en) Automatic Telephone System.
FR667130A (en) Automatic telephone system
FR31060E (en) Automatic telephone system with shared lines
FR628069A (en) Automatic disconnection system
FR591683A (en) Automatic lubrication system
FR561859A (en) Automatic block system
FR582166A (en) Multiple counting automatic telephone system
FR599403A (en) Automatic washer-washer-rinser
FR582168A (en) Automatic telephone system with shared lines
FR580783A (en) Automatic feeder
ES91978A1 (en) An automatic announcing device.
FR602742A (en) Automatic lubricator
FR590411A (en) Automatic denaturator
FR29383E (en) Automatic filler-obturator
FR576360A (en) Automatic filler-obturator
FR584380A (en) Automatic doser-dispenser
FR594178A (en) Transport system
FR609168A (en) Radiotelephone communication system