GB677182A - Improvements in or relating to electric incandescent lamps - Google Patents

Improvements in or relating to electric incandescent lamps

Info

Publication number
GB677182A
GB677182A GB8765/50A GB876550A GB677182A GB 677182 A GB677182 A GB 677182A GB 8765/50 A GB8765/50 A GB 8765/50A GB 876550 A GB876550 A GB 876550A GB 677182 A GB677182 A GB 677182A
Authority
GB
United Kingdom
Prior art keywords
screen
wire
supporting
april
bent
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
GB8765/50A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB677182A publication Critical patent/GB677182A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
GB8765/50A 1949-04-13 1950-04-06 Improvements in or relating to electric incandescent lamps Expired GB677182A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL280312X 1949-04-13

Publications (1)

Publication Number Publication Date
GB677182A true GB677182A (en) 1952-08-13

Family

ID=19782274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8765/50A Expired GB677182A (en) 1949-04-13 1950-04-06 Improvements in or relating to electric incandescent lamps

Country Status (6)

Country Link
BE (1) BE495063A (en, 2012)
CH (1) CH280312A (en, 2012)
DE (1) DE816576C (en, 2012)
FR (1) FR1018365A (en, 2012)
GB (1) GB677182A (en, 2012)
NL (1) NL73320C (en, 2012)

Also Published As

Publication number Publication date
NL73320C (en, 2012)
FR1018365A (fr) 1953-01-07
BE495063A (en, 2012)
DE816576C (de) 1951-10-11
CH280312A (de) 1952-01-15

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