FR1063063A - Improvements to electric lamps - Google Patents

Improvements to electric lamps

Info

Publication number
FR1063063A
FR1063063A FR1063063DA FR1063063A FR 1063063 A FR1063063 A FR 1063063A FR 1063063D A FR1063063D A FR 1063063DA FR 1063063 A FR1063063 A FR 1063063A
Authority
FR
France
Prior art keywords
electric lamps
lamps
electric
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.)
Polaroid Corp
International Polaroid Corp
Original Assignee
Polaroid Corp
International Polaroid Corp
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 Polaroid Corp, International Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of FR1063063A publication Critical patent/FR1063063A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
FR1063063D 1952-04-11 1952-04-11 Improvements to electric lamps Expired FR1063063A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1063063T 1952-04-11

Publications (1)

Publication Number Publication Date
FR1063063A true FR1063063A (en) 1954-04-29

Family

ID=9600974

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1063063D Expired FR1063063A (en) 1952-04-11 1952-04-11 Improvements to electric lamps

Country Status (1)

Country Link
FR (1) FR1063063A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200433B (en) * 1956-01-16 1965-09-09 Union Carbide Corp Incandescent lamp with a tantalum carbide filament

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1200433B (en) * 1956-01-16 1965-09-09 Union Carbide Corp Incandescent lamp with a tantalum carbide filament

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