FR488317A - System for telephone correspondence with railway trains and similar vehicles in motion - Google Patents

System for telephone correspondence with railway trains and similar vehicles in motion

Info

Publication number
FR488317A
FR488317A FR488317A FR488317DA FR488317A FR 488317 A FR488317 A FR 488317A FR 488317 A FR488317 A FR 488317A FR 488317D A FR488317D A FR 488317DA FR 488317 A FR488317 A FR 488317A
Authority
FR
France
Prior art keywords
motion
similar vehicles
railway trains
telephone correspondence
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
FR488317A
Other languages
French (fr)
Inventor
Victor Gabriel Werner
Karl Hjalmar Warfvinge
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR488317A publication Critical patent/FR488317A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling
    • H04B5/26—Inductive coupling using coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR488317A 1915-08-27 1916-08-24 System for telephone correspondence with railway trains and similar vehicles in motion Expired FR488317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE488317X 1915-08-27

Publications (1)

Publication Number Publication Date
FR488317A true FR488317A (en) 1918-09-20

Family

ID=6090593

Family Applications (1)

Application Number Title Priority Date Filing Date
FR488317A Expired FR488317A (en) 1915-08-27 1916-08-24 System for telephone correspondence with railway trains and similar vehicles in motion

Country Status (2)

Country Link
DE (1) DE297116C (en)
FR (1) FR488317A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048609B (en) * 1959-09-12 1959-01-15

Also Published As

Publication number Publication date
DE297116C (en)

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