FR864405A - System for emergency lighting - Google Patents

System for emergency lighting

Info

Publication number
FR864405A
FR864405A FR864405DA FR864405A FR 864405 A FR864405 A FR 864405A FR 864405D A FR864405D A FR 864405DA FR 864405 A FR864405 A FR 864405A
Authority
FR
France
Prior art keywords
emergency lighting
emergency
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)
Inventor
Demongeot Armand
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
Priority to FR864405T priority Critical
Application granted granted Critical
Publication of FR864405A publication Critical patent/FR864405A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
FR864405D 1939-12-06 1939-12-06 System for emergency lighting Expired FR864405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR864405T 1939-12-06

Publications (1)

Publication Number Publication Date
FR864405A true FR864405A (en) 1941-04-26

Family

ID=9343839

Family Applications (1)

Application Number Title Priority Date Filing Date
FR864405D Expired FR864405A (en) 1939-12-06 1939-12-06 System for emergency lighting

Country Status (1)

Country Link
FR (1) FR864405A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2857509A (en) * 1956-01-18 1958-10-21 Ira L Fuller Adjustable lamp shade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2857509A (en) * 1956-01-18 1958-10-21 Ira L Fuller Adjustable lamp shade

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