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
Links
Classifications
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- 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
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- 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
Publications (1)
Publication Number | Publication Date |
---|---|
FR702048A true FR702048A (fr) | 1931-04-27 |
Family
ID=1544276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR702048D Expired FR702048A (fr) |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR702048A (fr) |
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0
- FR FR702048D patent/FR702048A/fr not_active Expired