IT989450B - Lampada elettrica a incandescenza con filamento di tungsteno e riempimento di gas - Google Patents

Lampada elettrica a incandescenza con filamento di tungsteno e riempimento di gas

Info

Publication number
IT989450B
IT989450B IT2581173A IT2581173A IT989450B IT 989450 B IT989450 B IT 989450B IT 2581173 A IT2581173 A IT 2581173A IT 2581173 A IT2581173 A IT 2581173A IT 989450 B IT989450 B IT 989450B
Authority
IT
Italy
Prior art keywords
incandescent lamp
gas filling
tungsten filament
electric incandescent
electric
Prior art date
Application number
IT2581173A
Other languages
English (en)
Italian (it)
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Application granted granted Critical
Publication of IT989450B publication Critical patent/IT989450B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
IT2581173A 1972-06-28 1973-06-25 Lampada elettrica a incandescenza con filamento di tungsteno e riempimento di gas IT989450B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7208874A NL7208874A (fr) 1972-06-28 1972-06-28

Publications (1)

Publication Number Publication Date
IT989450B true IT989450B (it) 1975-05-20

Family

ID=19816394

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2581173A IT989450B (it) 1972-06-28 1973-06-25 Lampada elettrica a incandescenza con filamento di tungsteno e riempimento di gas

Country Status (7)

Country Link
JP (1) JPS552706B2 (fr)
BE (1) BE801467A (fr)
DE (1) DE2329691A1 (fr)
FR (1) FR2191264B1 (fr)
GB (1) GB1420111A (fr)
IT (1) IT989450B (fr)
NL (1) NL7208874A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55149975U (fr) * 1979-04-13 1980-10-29
JPS5911966Y2 (ja) * 1979-11-30 1984-04-11 株式会社 泉井鉄工所 延縄の幹縄纏絡防止装置

Also Published As

Publication number Publication date
BE801467A (fr) 1973-12-26
FR2191264B1 (fr) 1976-11-12
FR2191264A1 (fr) 1974-02-01
NL7208874A (fr) 1974-01-02
JPS552706B2 (fr) 1980-01-22
JPS4957685A (fr) 1974-06-04
GB1420111A (en) 1976-01-07
DE2329691A1 (de) 1974-01-17

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