FR777504A - Incandescent electric lamp for mines - Google Patents

Incandescent electric lamp for mines

Info

Publication number
FR777504A
FR777504A FR777504DA FR777504A FR 777504 A FR777504 A FR 777504A FR 777504D A FR777504D A FR 777504DA FR 777504 A FR777504 A FR 777504A
Authority
FR
France
Prior art keywords
mines
electric lamp
incandescent electric
incandescent
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
Other languages
French (fr)
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.)
Osa Participations Industrielles SA
Original Assignee
Osa Participations Industrielles SA
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 Osa Participations Industrielles SA filed Critical Osa Participations Industrielles SA
Application granted granted Critical
Publication of FR777504A publication Critical patent/FR777504A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
FR777504D 1933-09-19 1934-08-20 Incandescent electric lamp for mines Expired FR777504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE421462X 1933-09-19

Publications (1)

Publication Number Publication Date
FR777504A true FR777504A (en) 1935-02-22

Family

ID=6458065

Family Applications (1)

Application Number Title Priority Date Filing Date
FR777504D Expired FR777504A (en) 1933-09-19 1934-08-20 Incandescent electric lamp for mines

Country Status (2)

Country Link
FR (1) FR777504A (en)
GB (1) GB421462A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941930C (en) * 1952-02-04 1956-04-19 Philips Nv Electric lamp with base made of insulating material, on the outer surface of which the wires forming a whole with the current conductor to the bulb interior are arranged as current collectors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941930C (en) * 1952-02-04 1956-04-19 Philips Nv Electric lamp with base made of insulating material, on the outer surface of which the wires forming a whole with the current conductor to the bulb interior are arranged as current collectors

Also Published As

Publication number Publication date
GB421462A (en) 1934-12-20

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