FR874589A - Improvements made to electric discharge tubes - Google Patents

Improvements made to electric discharge tubes

Info

Publication number
FR874589A
FR874589A FR874589DA FR874589A FR 874589 A FR874589 A FR 874589A FR 874589D A FR874589D A FR 874589DA FR 874589 A FR874589 A FR 874589A
Authority
FR
France
Prior art keywords
electric discharge
improvements made
discharge tubes
tubes
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR874589A publication Critical patent/FR874589A/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
    • 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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
FR874589D 1940-08-10 1941-08-09 Improvements made to electric discharge tubes Expired FR874589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL224049X 1940-08-10

Publications (1)

Publication Number Publication Date
FR874589A true FR874589A (en) 1942-08-11

Family

ID=19779541

Family Applications (1)

Application Number Title Priority Date Filing Date
FR874589D Expired FR874589A (en) 1940-08-10 1941-08-09 Improvements made to electric discharge tubes

Country Status (6)

Country Link
US (1) US2442608A (en)
BE (1) BE442424A (en)
CH (1) CH224049A (en)
FR (1) FR874589A (en)
GB (2) GB552753A (en)
NL (1) NL60403C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL60403C (en) * 1940-08-10
NL107438C (en) * 1957-07-12 1900-01-01
FR1284007A (en) * 1960-12-30 1962-02-09 Csf Closing of metal vacuum chambers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL60403C (en) * 1940-08-10

Also Published As

Publication number Publication date
BE442424A (en)
GB552753A (en) 1943-04-22
US2442608A (en) 1948-06-01
NL60403C (en)
GB604785A (en) 1948-07-09
CH224049A (en) 1942-10-31

Similar Documents

Publication Publication Date Title
FR864657A (en) Improvements to discharge tubes
FR835633A (en) Improvements to electric discharge tubes
FR855943A (en) Improvements made to electric discharge tubes
FR870111A (en) Improvements to discharge tubes
FR884059A (en) Improvements to discharge tubes
FR868395A (en) Electric discharge tube
FR874589A (en) Improvements made to electric discharge tubes
FR950304A (en) Improvements to discharge tubes
FR866332A (en) Improvements to discharge tubes
FR878759A (en) Improvements to discharge lamps
FR871549A (en) Improvements made to electric discharge tubes
FR51918E (en) Improvements to discharge tubes
FR872842A (en) Improvements made to electric discharge tubes
FR873065A (en) Electric discharge tube
FR876711A (en) Improvements to discharge tubes
FR884840A (en) Improvements made to electric discharge tubes
FR864289A (en) Improvements to discharge tubes
FR50983E (en) Improvements to discharge tubes
FR871520A (en) Electric discharge tube
FR872829A (en) Electric discharge tube
FR873821A (en) Electric discharge tube
FR841828A (en) Improvements to electric discharge tubes
FR848550A (en) Electric discharge tube
FR51233E (en) Improvements to equipment comprising discharge tubes
FR51214E (en) Improvements to equipment comprising discharge tubes