FR1033796A - Signpost visible in the dark - Google Patents

Signpost visible in the dark

Info

Publication number
FR1033796A
FR1033796A FR1033796DA FR1033796A FR 1033796 A FR1033796 A FR 1033796A FR 1033796D A FR1033796D A FR 1033796DA FR 1033796 A FR1033796 A FR 1033796A
Authority
FR
France
Prior art keywords
signpost
dark
visible
signpost visible
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.)
WATTOHM SOC
Original Assignee
WATTOHM SOC
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 WATTOHM SOC filed Critical WATTOHM SOC
Application granted granted Critical
Publication of FR1033796A publication Critical patent/FR1033796A/en
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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
FR1033796D 1951-03-09 1951-03-09 Signpost visible in the dark Expired FR1033796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1033796T 1951-03-09

Publications (1)

Publication Number Publication Date
FR1033796A true FR1033796A (en) 1953-07-15

Family

ID=9584685

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1033796D Expired FR1033796A (en) 1951-03-09 1951-03-09 Signpost visible in the dark

Country Status (1)

Country Link
FR (1) FR1033796A (en)

Similar Documents

Publication Publication Date Title
FR1065718A (en) Improvements in the manufacture of glass objects
BE754223A (en) ELECTROLUMINESCENT DISPLAY DEVICE
FR61817E (en) Improvements in the drawing of thermoplastics
FR1207718A (en) Observation device in poor lighting conditions
BE760063A (en) DISPLAY PANEL
FR1033796A (en) Signpost visible in the dark
BE752451A (en) DISPLAY DEVICE
FR1081957A (en) Improvements to illuminated objects in the dark
FR1059550A (en) Improvement to hourly indicators with hourly signs visible in the dark
FR1031211A (en) Alloy usable in dentistry
BE759799A (en) DISPLAY PANEL
FR1076024A (en) Camera usable in the dark
AT169705B (en) Transparent billboard
FR1039341A (en) Double use surface and single frame indicator advertising panel
BE754172A (en) DISPLAY PANEL
FR1032664A (en) Art and advertising object
FR77618E (en) Animated display panel
FR1050700A (en) Improvements in color cinematography, color television and the like
FR92520E (en) Display case
FR1082349A (en) Control device applicable in particular to the light display
FR1140111A (en) Lighting device in particular of the object, in microscopes
ES197019A1 (en) IMPROVEMENTS IN THE RADIO-LOCALIZATION SYSTEMS DENOMINATED "RADAR"
CA479231A (en) Carbocyanine dyes containing substituted mercapto groups in the meso position
ES199059A3 (en) IMPROVEMENTS IN THE VISIBLE EXPENDITURE INDICATORS
GR12877B (en) ENGINE AND WATER ENGINE.