FR702048A - - Google Patents

Info

Publication number
FR702048A
FR702048A FR702048DA FR702048A FR 702048 A FR702048 A FR 702048A FR 702048D A FR702048D A FR 702048DA FR 702048 A FR702048 A FR 702048A
Authority
FR
France
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)
Publication date
Application granted granted Critical
Publication of FR702048A publication Critical patent/FR702048A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/20—Seals between parts of vessels
    • H01J5/22—Vacuum-tight joints between parts of vessel
    • H01J5/30—Vacuum-tight joints between parts of vessel using packing-material, e.g. sealing-liquid or elastic insert
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0047—Closure other than lamp base
FR702048D Expired FR702048A (US07541385-20090602-C00001.png)

Publications (1)

Publication Number Publication Date
FR702048A true FR702048A (US07541385-20090602-C00001.png) 1931-04-27

Family

ID=1544276

Family Applications (1)

Application Number Title Priority Date Filing Date
FR702048D Expired FR702048A (US07541385-20090602-C00001.png)

Country Status (1)

Country Link
FR (1) FR702048A (US07541385-20090602-C00001.png)

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