GB440192A - Improvements in or relating to electric incandescent lamps - Google Patents

Improvements in or relating to electric incandescent lamps

Info

Publication number
GB440192A
GB440192A GB17687/34A GB1768734A GB440192A GB 440192 A GB440192 A GB 440192A GB 17687/34 A GB17687/34 A GB 17687/34A GB 1768734 A GB1768734 A GB 1768734A GB 440192 A GB440192 A GB 440192A
Authority
GB
United Kingdom
Prior art keywords
bulb
ribs
planes
intersection
lamp
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
GB17687/34A
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 GB440192A publication Critical patent/GB440192A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
GB17687/34A 1933-06-24 1934-06-14 Improvements in or relating to electric incandescent lamps Expired GB440192A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL440192X 1933-06-24

Publications (1)

Publication Number Publication Date
GB440192A true GB440192A (en) 1935-12-16

Family

ID=19786228

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17687/34A Expired GB440192A (en) 1933-06-24 1934-06-14 Improvements in or relating to electric incandescent lamps

Country Status (3)

Country Link
US (1) US2045512A (enrdf_load_stackoverflow)
GB (1) GB440192A (enrdf_load_stackoverflow)
NL (1) NL37154C (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056020A (en) * 1960-02-11 1962-09-25 Saccomandi Corrado Vehicle headlight
NL292761A (enrdf_load_stackoverflow) * 1962-05-16

Also Published As

Publication number Publication date
NL37154C (enrdf_load_stackoverflow)
US2045512A (en) 1936-06-23

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