FR544421A - Improvements to incandescent electric lamps - Google Patents

Improvements to incandescent electric lamps

Info

Publication number
FR544421A
FR544421A FR544421DA FR544421A FR 544421 A FR544421 A FR 544421A FR 544421D A FR544421D A FR 544421DA FR 544421 A FR544421 A FR 544421A
Authority
FR
France
Prior art keywords
electric lamps
incandescent electric
incandescent
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.)
CONTINSOUZA ETS
Original Assignee
CONTINSOUZA ETS
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 CONTINSOUZA ETS filed Critical CONTINSOUZA ETS
Application granted granted Critical
Publication of FR544421A publication Critical patent/FR544421A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
FR544421D 1921-12-10 1921-12-10 Improvements to incandescent electric lamps Expired FR544421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR544421T 1921-12-10

Publications (1)

Publication Number Publication Date
FR544421A true FR544421A (en) 1922-09-22

Family

ID=8932270

Family Applications (1)

Application Number Title Priority Date Filing Date
FR544421D Expired FR544421A (en) 1921-12-10 1921-12-10 Improvements to incandescent electric lamps

Country Status (1)

Country Link
FR (1) FR544421A (en)

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