FR623249A - Improvements to incandescent lamps for projection devices - Google Patents

Improvements to incandescent lamps for projection devices

Info

Publication number
FR623249A
FR623249A FR623249DA FR623249A FR 623249 A FR623249 A FR 623249A FR 623249D A FR623249D A FR 623249DA FR 623249 A FR623249 A FR 623249A
Authority
FR
France
Prior art keywords
incandescent lamps
projection devices
projection
devices
incandescent
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR623249A publication Critical patent/FR623249A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
FR623249D 1925-10-29 1926-10-18 Improvements to incandescent lamps for projection devices Expired FR623249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US260615TA 1925-10-29 1925-10-29

Publications (1)

Publication Number Publication Date
FR623249A true FR623249A (en) 1927-06-21

Family

ID=31945539

Family Applications (1)

Application Number Title Priority Date Filing Date
FR623249D Expired FR623249A (en) 1925-10-29 1926-10-18 Improvements to incandescent lamps for projection devices

Country Status (4)

Country Link
BE (1) BE337088A (en)
FR (1) FR623249A (en)
GB (1) GB260615A (en)
NL (1) NL20297C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116992A (en) * 1959-10-02 1964-01-07 Gen Electric Method of manufacture of lamp filament supports

Also Published As

Publication number Publication date
NL20297C (en)
GB260615A (en) 1927-04-07
BE337088A (en)

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