FR470563A - Improvement in incandescent electric lamps - Google Patents

Improvement in incandescent electric lamps

Info

Publication number
FR470563A
FR470563A FR470563DA FR470563A FR 470563 A FR470563 A FR 470563A FR 470563D A FR470563D A FR 470563DA FR 470563 A FR470563 A FR 470563A
Authority
FR
France
Prior art keywords
improvement
electric lamps
incandescent electric
incandescent
lamps
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
Albert Nunes
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.)
ALBERT NUNES
Original Assignee
ALBERT NUNES
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 ALBERT NUNES filed Critical ALBERT NUNES
Application granted granted Critical
Publication of FR470563A publication Critical patent/FR470563A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters
FR470563D 1914-04-06 1914-04-06 Improvement in incandescent electric lamps Expired FR470563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR470563T 1914-04-06

Publications (1)

Publication Number Publication Date
FR470563A true FR470563A (en) 1914-09-17

Family

ID=1508911

Family Applications (1)

Application Number Title Priority Date Filing Date
FR470563D Expired FR470563A (en) 1914-04-06 1914-04-06 Improvement in incandescent electric lamps

Country Status (1)

Country Link
FR (1) FR470563A (en)

Similar Documents

Publication Publication Date Title
FR470563A (en) Improvement in incandescent electric lamps
FR588948A (en) Incandescent lamp improvements
FR477955A (en) Incandescent lamp improvements
CH57393A (en) Improvement in incandescent electric lamps
FR17979E (en) Improvements to incandescent electric lamps
FR434540A (en) Improvements to incandescent electric lamps
FR482720A (en) Incandescent lamp improvements
FR481047A (en) Improvements to incandescent electric lamps
FR474519A (en) Improvements to incandescent electric lamps
FR485539A (en) Improvements to electric incandescent lamps
FR470744A (en) Improvements relating to incandescent electric lamps
FR469095A (en) Incandescent lamp
FR471379A (en) Incandescent lamp improvements
FR456414A (en) Improvements to incandescent electric lamps
FR468533A (en) Improvements to incandescent electric lamps
FR467221A (en) Improvements to incandescent electric lamps
FR453872A (en) Improvements to electric incandescent lamps
FR475051A (en) Incandescent removable electric lamp
FR480290A (en) Improvements in incandescent electric lamps
FR482427A (en) Incandescent electric lamp with metallic filament
FR475345A (en) Improvement in electric incandescent lamps with gas atmosphere
FR478286A (en) Further development in incandescent electric lamps
FR458876A (en) Incandescent lamp improvements
FR20377E (en) Incandescent lamp improvements
FR469368A (en) Incandescent lamp improvements