GB316292A - Improvements in or relating to electric incandescent lamps - Google Patents

Improvements in or relating to electric incandescent lamps

Info

Publication number
GB316292A
GB316292A GB17809/29A GB1780929A GB316292A GB 316292 A GB316292 A GB 316292A GB 17809/29 A GB17809/29 A GB 17809/29A GB 1780929 A GB1780929 A GB 1780929A GB 316292 A GB316292 A GB 316292A
Authority
GB
United Kingdom
Prior art keywords
filament
supply voltage
potential difference
parts
relating
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
GB17809/29A
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.)
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
Publication of GB316292A publication Critical patent/GB316292A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/40—Hand-driven apparatus for making cigarettes
    • A24C5/44—Pocket cigarette-rollers

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
GB17809/29A 1928-07-27 1929-06-10 Improvements in or relating to electric incandescent lamps Expired GB316292A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL316292X 1928-07-27

Publications (1)

Publication Number Publication Date
GB316292A true GB316292A (en) 1930-09-10

Family

ID=19783814

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17809/29A Expired GB316292A (en) 1928-07-27 1929-06-10 Improvements in or relating to electric incandescent lamps

Country Status (5)

Country Link
BE (1) BE361275A (OSRAM)
DE (1) DE546769C (OSRAM)
FR (1) FR676337A (OSRAM)
GB (1) GB316292A (OSRAM)
NL (2) NL42291C (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5079474A (en) * 1989-09-11 1992-01-07 U.S. Philips Corporation Electric incandescent lamp

Also Published As

Publication number Publication date
BE361275A (OSRAM)
NL27020C (OSRAM)
FR676337A (fr) 1930-02-21
DE546769C (de) 1932-03-16
NL42291C (OSRAM)

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