GB249540A - Improvements in and relating to the marking of incandescent lamps and similar articles - Google Patents

Improvements in and relating to the marking of incandescent lamps and similar articles

Info

Publication number
GB249540A
GB249540A GB7513/26A GB751326A GB249540A GB 249540 A GB249540 A GB 249540A GB 7513/26 A GB7513/26 A GB 7513/26A GB 751326 A GB751326 A GB 751326A GB 249540 A GB249540 A GB 249540A
Authority
GB
United Kingdom
Prior art keywords
marking
relating
incandescent lamps
similar articles
assignees
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
GB7513/26A
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
Publication of GB249540A publication Critical patent/GB249540A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
    • H01J5/08—Vessels; Containers; Shields associated therewith; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
GB7513/26A 1925-03-19 1926-03-18 Improvements in and relating to the marking of incandescent lamps and similar articles Expired GB249540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US249540XA 1925-03-19 1925-03-19

Publications (1)

Publication Number Publication Date
GB249540A true GB249540A (en) 1926-07-15

Family

ID=21823233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7513/26A Expired GB249540A (en) 1925-03-19 1926-03-18 Improvements in and relating to the marking of incandescent lamps and similar articles

Country Status (3)

Country Link
BE (1) BE332675A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR612820A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB249540A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
FR612820A (fr) 1926-11-02
BE332675A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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