FR450972A - Verre spécial pour la diffusion de la lumière - Google Patents

Verre spécial pour la diffusion de la lumière

Info

Publication number
FR450972A
FR450972A FR450972DA FR450972A FR 450972 A FR450972 A FR 450972A FR 450972D A FR450972D A FR 450972DA FR 450972 A FR450972 A FR 450972A
Authority
FR
France
Prior art keywords
light diffusion
special glass
special
glass
diffusion
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
English (en)
Inventor
Arthur Sylvain Levy
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR450972A publication Critical patent/FR450972A/fr
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
    • F21S11/00—Non-electric lighting devices or systems using daylight

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR450972D 1911-11-28 1912-11-23 Verre spécial pour la diffusion de la lumière Expired FR450972A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE450972X 1911-11-28

Publications (1)

Publication Number Publication Date
FR450972A true FR450972A (fr) 1913-04-08

Family

ID=1491348

Family Applications (1)

Application Number Title Priority Date Filing Date
FR450972D Expired FR450972A (fr) 1911-11-28 1912-11-23 Verre spécial pour la diffusion de la lumière

Country Status (1)

Country Link
FR (1) FR450972A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040104A (en) * 1990-03-19 1991-08-13 Herman Miller, Inc. Task light panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040104A (en) * 1990-03-19 1991-08-13 Herman Miller, Inc. Task light panel

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