FR844194A - Signaling method and device - Google Patents

Signaling method and device

Info

Publication number
FR844194A
FR844194A FR844194DA FR844194A FR 844194 A FR844194 A FR 844194A FR 844194D A FR844194D A FR 844194DA FR 844194 A FR844194 A FR 844194A
Authority
FR
France
Prior art keywords
signaling method
signaling
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)
Inventor
Andre De Foucheres
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 filed Critical
Application granted granted Critical
Publication of FR844194A publication Critical patent/FR844194A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR844194D 1938-03-30 1938-03-30 Signaling method and device Expired FR844194A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR844194T 1938-03-30

Publications (1)

Publication Number Publication Date
FR844194A true FR844194A (en) 1939-07-20

Family

ID=9312309

Family Applications (1)

Application Number Title Priority Date Filing Date
FR844194D Expired FR844194A (en) 1938-03-30 1938-03-30 Signaling method and device

Country Status (1)

Country Link
FR (1) FR844194A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008219A1 (en) * 1990-10-26 1992-05-14 Ultralux Ab A post for marking road verges

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008219A1 (en) * 1990-10-26 1992-05-14 Ultralux Ab A post for marking road verges
US5398174A (en) * 1990-10-26 1995-03-14 Ultralux Ab Post for marking road verges

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