FR668949A - Development of frosted glass bulbs - Google Patents

Development of frosted glass bulbs

Info

Publication number
FR668949A
FR668949A FR668949DA FR668949A FR 668949 A FR668949 A FR 668949A FR 668949D A FR668949D A FR 668949DA FR 668949 A FR668949 A FR 668949A
Authority
FR
France
Prior art keywords
development
frosted glass
glass bulbs
bulbs
frosted
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)
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.)
Radiotechnique SA
Original Assignee
Radiotechnique SA
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 Radiotechnique SA filed Critical Radiotechnique SA
Application granted granted Critical
Publication of FR668949A publication Critical patent/FR668949A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
FR668949D 1928-05-22 1928-05-22 Development of frosted glass bulbs Expired FR668949A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR668949T 1928-05-22

Publications (1)

Publication Number Publication Date
FR668949A true FR668949A (en) 1929-11-08

Family

ID=9015405

Family Applications (1)

Application Number Title Priority Date Filing Date
FR668949D Expired FR668949A (en) 1928-05-22 1928-05-22 Development of frosted glass bulbs

Country Status (1)

Country Link
FR (1) FR668949A (en)

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