FR991830A - Support ruler for discharge tubes - Google Patents

Support ruler for discharge tubes

Info

Publication number
FR991830A
FR991830A FR991830DA FR991830A FR 991830 A FR991830 A FR 991830A FR 991830D A FR991830D A FR 991830DA FR 991830 A FR991830 A FR 991830A
Authority
FR
France
Prior art keywords
discharge tubes
support ruler
ruler
support
tubes
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
Roger-Francois-Desir Navarre
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 FR991830A publication Critical patent/FR991830A/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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR991830D 1949-05-19 1949-05-19 Support ruler for discharge tubes Expired FR991830A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR991830T 1949-05-19

Publications (1)

Publication Number Publication Date
FR991830A true FR991830A (en) 1951-10-10

Family

ID=9554309

Family Applications (1)

Application Number Title Priority Date Filing Date
FR991830D Expired FR991830A (en) 1949-05-19 1949-05-19 Support ruler for discharge tubes

Country Status (1)

Country Link
FR (1) FR991830A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3129038A1 (en) * 1981-07-17 1983-02-03 Achim Dipl.-Ing. Dr.-Ing. 1000 Berlin Willing Illuminated sign

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3129038A1 (en) * 1981-07-17 1983-02-03 Achim Dipl.-Ing. Dr.-Ing. 1000 Berlin Willing Illuminated sign

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