FR44068E - Improvements to lighting devices - Google Patents

Improvements to lighting devices

Info

Publication number
FR44068E
FR44068E FR44068DA FR44068E FR 44068 E FR44068 E FR 44068E FR 44068D A FR44068D A FR 44068DA FR 44068 E FR44068 E FR 44068E
Authority
FR
France
Prior art keywords
lighting devices
lighting
devices
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 des Lampes
Original Assignee
Compagnie des Lampes
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 des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR44068E publication Critical patent/FR44068E/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S13/00Non-electric lighting devices or systems employing a point-like light source; Non-electric lighting devices or systems employing a light source of unspecified shape

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR44068D 1933-07-06 1933-07-06 Improvements to lighting devices Expired FR44068E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR44068T 1933-07-06

Publications (1)

Publication Number Publication Date
FR44068E true FR44068E (en) 1934-10-11

Family

ID=8679970

Family Applications (1)

Application Number Title Priority Date Filing Date
FR44068D Expired FR44068E (en) 1933-07-06 1933-07-06 Improvements to lighting devices

Country Status (1)

Country Link
FR (1) FR44068E (en)

Similar Documents

Publication Publication Date Title
FR777114A (en) Improvements to traction devices
FR772911A (en) Improvements to television devices
FR786535A (en) Improvements to pulse emitting devices
FR801784A (en) Improvement in lighting devices
FR765953A (en) roadway lighting
FR44068E (en) Improvements to lighting devices
FR777012A (en) Improvements to electric lighting lamps
FR796822A (en) Improvements to indirect lighting devices
FR773812A (en) Improvements to electrolytic devices
FR43446E (en) Lighting device
FR782163A (en) Lighting device
FR772191A (en) Improvements to sheet-filling devices
FR781312A (en) Improvements to luminous fountains
FR805291A (en) Improvements to phosphorescence lighting devices
FR755136A (en) Improvements to thermo-ionic lamps
FR771451A (en) Improvements to winding devices
FR768352A (en) Improvements to reflectors for lighting
FR768415A (en) Improvements to television devices
FR761140A (en) Improvements to electric lighting devices
FR772017A (en) Improvements to thermoelectric devices
FR751341A (en) Improvements to public lighting devices
FR711440A (en) Improvements to lighting devices
FR761010A (en) Improvements to illumination sockets
FR665994A (en) Improvements to lighting devices
FR787140A (en) Improvements to lighting lamps