GB608676A - Improvements in and relating to internal exhaust seals for electric lamps and similar devices - Google Patents

Improvements in and relating to internal exhaust seals for electric lamps and similar devices

Info

Publication number
GB608676A
GB608676A GB6071/46A GB607146A GB608676A GB 608676 A GB608676 A GB 608676A GB 6071/46 A GB6071/46 A GB 6071/46A GB 607146 A GB607146 A GB 607146A GB 608676 A GB608676 A GB 608676A
Authority
GB
United Kingdom
Prior art keywords
lamp
disc
xxxvi
relating
wire
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
GB6071/46A
Other languages
English (en)
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority claimed from US708919A external-priority patent/US2473860A/en
Publication of GB608676A publication Critical patent/GB608676A/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)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Package Closures (AREA)
GB6071/46A 1945-03-13 1946-02-27 Improvements in and relating to internal exhaust seals for electric lamps and similar devices Expired GB608676A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US608676XA 1945-03-13 1945-03-13
US708919A US2473860A (en) 1946-11-09 1946-11-09 Internal exhaust seal for electric lamps and similar devices

Publications (1)

Publication Number Publication Date
GB608676A true GB608676A (en) 1948-09-20

Family

ID=26740433

Family Applications (2)

Application Number Title Priority Date Filing Date
GB6071/46A Expired GB608676A (en) 1945-03-13 1946-02-27 Improvements in and relating to internal exhaust seals for electric lamps and similar devices
GB29524/47A Expired GB629833A (en) 1945-03-13 1947-11-05 Improvements in and relating to internal exhaust seals for electric lamps and similar devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB29524/47A Expired GB629833A (en) 1945-03-13 1947-11-05 Improvements in and relating to internal exhaust seals for electric lamps and similar devices

Country Status (3)

Country Link
BE (1) BE477393A (es)
GB (2) GB608676A (es)
NL (1) NL71352C (es)

Also Published As

Publication number Publication date
BE477393A (es)
NL71352C (es)
GB629833A (en) 1949-09-29

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