FR674233A - Improvements to devices used for lighting - Google Patents

Improvements to devices used for lighting

Info

Publication number
FR674233A
FR674233A FR674233DA FR674233A FR 674233 A FR674233 A FR 674233A FR 674233D A FR674233D A FR 674233DA FR 674233 A FR674233 A FR 674233A
Authority
FR
France
Prior art keywords
lighting
devices used
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)
Inventor
Paul Planer
Remigius Geyling
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 FR674233A publication Critical patent/FR674233A/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
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR674233D 1928-05-04 1929-04-29 Improvements to devices used for lighting Expired FR674233A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT674233X 1928-05-04

Publications (1)

Publication Number Publication Date
FR674233A true FR674233A (en) 1930-01-24

Family

ID=3678737

Family Applications (1)

Application Number Title Priority Date Filing Date
FR674233D Expired FR674233A (en) 1928-05-04 1929-04-29 Improvements to devices used for lighting

Country Status (1)

Country Link
FR (1) FR674233A (en)

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