FR837539A - Lighting device - Google Patents

Lighting device

Info

Publication number
FR837539A
FR837539A FR837539DA FR837539A FR 837539 A FR837539 A FR 837539A FR 837539D A FR837539D A FR 837539DA FR 837539 A FR837539 A FR 837539A
Authority
FR
France
Prior art keywords
lighting device
lighting
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR837539A publication Critical patent/FR837539A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S13/00—Non-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)
FR837539D 1937-05-04 1938-05-04 Lighting device Expired FR837539A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL837539X 1937-05-04

Publications (1)

Publication Number Publication Date
FR837539A true FR837539A (en) 1939-02-13

Family

ID=19843201

Family Applications (1)

Application Number Title Priority Date Filing Date
FR837539D Expired FR837539A (en) 1937-05-04 1938-05-04 Lighting device

Country Status (1)

Country Link
FR (1) FR837539A (en)

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