FR847788A - Device for changing the lighting in the event of an alert - Google Patents

Device for changing the lighting in the event of an alert

Info

Publication number
FR847788A
FR847788A FR847788DA FR847788A FR 847788 A FR847788 A FR 847788A FR 847788D A FR847788D A FR 847788DA FR 847788 A FR847788 A FR 847788A
Authority
FR
France
Prior art keywords
alert
lighting
event
changing
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
Strauss
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 FR847788A publication Critical patent/FR847788A/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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • 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
    • F21V17/04—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the light source

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR847788D 1938-06-24 1938-06-24 Device for changing the lighting in the event of an alert Expired FR847788A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR847788T 1938-06-24

Publications (1)

Publication Number Publication Date
FR847788A true FR847788A (en) 1939-10-17

Family

ID=9313961

Family Applications (1)

Application Number Title Priority Date Filing Date
FR847788D Expired FR847788A (en) 1938-06-24 1938-06-24 Device for changing the lighting in the event of an alert

Country Status (1)

Country Link
FR (1) FR847788A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140137486A1 (en) * 2011-06-28 2014-05-22 Dsm Ip Assets B.V. Modular multi-story production plant and methods for constructing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140137486A1 (en) * 2011-06-28 2014-05-22 Dsm Ip Assets B.V. Modular multi-story production plant and methods for constructing same

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