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GB351433A - - Google Patents

Info

Publication number
GB351433A
GB351433A GB3880229A GB3880229A GB351433A GB 351433 A GB351433 A GB 351433A GB 3880229 A GB3880229 A GB 3880229A GB 3880229 A GB3880229 A GB 3880229A GB 351433 A GB351433 A GB 351433A
Authority
GB
United Kingdom
Prior art keywords
class
filling
electrodes
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
GB3880229A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB351433A publication Critical patent/GB351433A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium

Landscapes

  • Discharge Lamp (AREA)
GB3880229A 1929-07-10 1929-12-18 Expired GB351433A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3880229X 1929-07-10

Publications (1)

Publication Number Publication Date
GB351433A true GB351433A (fr) 1931-06-24

Family

ID=8088126

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3880229A Expired GB351433A (fr) 1929-07-10 1929-12-18

Country Status (1)

Country Link
GB (1) GB351433A (fr)

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