FR29308E - Improvements to the processes and apparatus for manufacturing incandescent lamps - Google Patents

Improvements to the processes and apparatus for manufacturing incandescent lamps

Info

Publication number
FR29308E
FR29308E FR29308DA FR29308E FR 29308 E FR29308 E FR 29308E FR 29308D A FR29308D A FR 29308DA FR 29308 E FR29308 E FR 29308E
Authority
FR
France
Prior art keywords
processes
incandescent lamps
manufacturing incandescent
manufacturing
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)
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR29308E publication Critical patent/FR29308E/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)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
FR29308D 1923-06-04 1924-06-02 Improvements to the processes and apparatus for manufacturing incandescent lamps Expired FR29308E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US643166A US1631379A (en) 1923-06-04 1923-06-04 Sealing-off torch

Publications (1)

Publication Number Publication Date
FR29308E true FR29308E (en) 1925-07-24

Family

ID=24579630

Family Applications (1)

Application Number Title Priority Date Filing Date
FR29308D Expired FR29308E (en) 1923-06-04 1924-06-02 Improvements to the processes and apparatus for manufacturing incandescent lamps

Country Status (4)

Country Link
US (1) US1631379A (en)
DE (1) DE448571C (en)
FR (1) FR29308E (en)
GB (1) GB217207A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3265487A (en) * 1963-05-23 1966-08-09 James F Kahlenberg Ampul sealing apparatus

Also Published As

Publication number Publication date
DE448571C (en) 1927-08-22
US1631379A (en) 1927-06-07
GB217207A (en) 1924-10-23

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