FR770030A - Improvements to electric lamps - Google Patents

Improvements to electric lamps

Info

Publication number
FR770030A
FR770030A FR770030DA FR770030A FR 770030 A FR770030 A FR 770030A FR 770030D A FR770030D A FR 770030DA FR 770030 A FR770030 A FR 770030A
Authority
FR
France
Prior art keywords
electric lamps
lamps
electric
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.)
NAT TELEVISION CORP
Original Assignee
NAT TELEVISION CORP
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 NAT TELEVISION CORP filed Critical NAT TELEVISION CORP
Application granted granted Critical
Publication of FR770030A publication Critical patent/FR770030A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
FR770030D 1933-08-29 1933-08-29 Improvements to electric lamps Expired FR770030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR770030T 1933-08-29

Publications (1)

Publication Number Publication Date
FR770030A true FR770030A (en) 1934-09-06

Family

ID=9185207

Family Applications (1)

Application Number Title Priority Date Filing Date
FR770030D Expired FR770030A (en) 1933-08-29 1933-08-29 Improvements to electric lamps

Country Status (1)

Country Link
FR (1) FR770030A (en)

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