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FR41259E - Electric lamps and their manufacturing process - Google Patents

Electric lamps and their manufacturing process

Info

Publication number
FR41259E
FR41259E FR41259DA FR41259E FR 41259 E FR41259 E FR 41259E FR 41259D A FR41259D A FR 41259DA FR 41259 E FR41259 E FR 41259E
Authority
FR
France
Prior art keywords
manufacturing process
electric lamps
lamps
electric
manufacturing
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
Georges Main
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 FR41259E publication Critical patent/FR41259E/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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR41259D 1931-11-04 1931-11-04 Electric lamps and their manufacturing process Expired FR41259E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR41259T 1931-11-04

Publications (1)

Publication Number Publication Date
FR41259E true FR41259E (en) 1932-12-02

Family

ID=8677438

Family Applications (1)

Application Number Title Priority Date Filing Date
FR41259D Expired FR41259E (en) 1931-11-04 1931-11-04 Electric lamps and their manufacturing process

Country Status (1)

Country Link
FR (1) FR41259E (en)

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