FR681478A - Fanal à main à éclipses pour télégraphie optique - Google Patents

Fanal à main à éclipses pour télégraphie optique

Info

Publication number
FR681478A
FR681478A FR681478DA FR681478A FR 681478 A FR681478 A FR 681478A FR 681478D A FR681478D A FR 681478DA FR 681478 A FR681478 A FR 681478A
Authority
FR
France
Prior art keywords
telegraphy
eclipse
optical
hand lantern
lantern
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
English (en)
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.)
Ouvrard SA Des Ets
Original Assignee
Ouvrard SA Des Ets
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 Ouvrard SA Des Ets filed Critical Ouvrard SA Des Ets
Application granted granted Critical
Publication of FR681478A publication Critical patent/FR681478A/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L14/00—Electric lighting devices without a self-contained power source, e.g. for mains connection
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
    • G08B5/38—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR681478D 1929-01-07 1929-01-07 Fanal à main à éclipses pour télégraphie optique Expired FR681478A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR681478T 1929-01-07

Publications (1)

Publication Number Publication Date
FR681478A true FR681478A (fr) 1930-05-15

Family

ID=9022829

Family Applications (1)

Application Number Title Priority Date Filing Date
FR681478D Expired FR681478A (fr) 1929-01-07 1929-01-07 Fanal à main à éclipses pour télégraphie optique

Country Status (1)

Country Link
FR (1) FR681478A (fr)

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