FR481002A - Improvements to electric lamps - Google Patents

Improvements to electric lamps

Info

Publication number
FR481002A
FR481002A FR481002DA FR481002A FR 481002 A FR481002 A FR 481002A FR 481002D A FR481002D A FR 481002DA FR 481002 A FR481002 A FR 481002A
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)
Inventor
Andrew John West
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR481002A publication Critical patent/FR481002A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/40—Closing vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
FR481002D 1916-02-19 1916-02-19 Improvements to electric lamps Expired FR481002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR481002T 1916-02-19

Publications (1)

Publication Number Publication Date
FR481002A true FR481002A (en) 1916-10-24

Family

ID=1518166

Family Applications (1)

Application Number Title Priority Date Filing Date
FR481002D Expired FR481002A (en) 1916-02-19 1916-02-19 Improvements to electric lamps

Country Status (1)

Country Link
FR (1) FR481002A (en)

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