GB503763A - Improvements in the manufacture of thermionic valve devices - Google Patents
Improvements in the manufacture of thermionic valve devicesInfo
- Publication number
- GB503763A GB503763A GB27195/37A GB2719537A GB503763A GB 503763 A GB503763 A GB 503763A GB 27195/37 A GB27195/37 A GB 27195/37A GB 2719537 A GB2719537 A GB 2719537A GB 503763 A GB503763 A GB 503763A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bulb
- tube
- disc
- wires
- exhausting
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000010445 mica Substances 0.000 abstract 3
- 229910052618 mica group Inorganic materials 0.000 abstract 3
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
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
- H01J5/32—Seals for leading-in conductors
Landscapes
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR823741T | 1936-10-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB503763A true GB503763A (en) | 1939-04-11 |
Family
ID=9281515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27195/37A Expired GB503763A (en) | 1936-10-08 | 1937-10-07 | Improvements in the manufacture of thermionic valve devices |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE423978A (enrdf_load_stackoverflow) |
FR (1) | FR823741A (enrdf_load_stackoverflow) |
GB (1) | GB503763A (enrdf_load_stackoverflow) |
-
0
- BE BE423978D patent/BE423978A/xx unknown
-
1936
- 1936-10-08 FR FR823741D patent/FR823741A/fr not_active Expired
-
1937
- 1937-10-07 GB GB27195/37A patent/GB503763A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE423978A (enrdf_load_stackoverflow) | |
FR823741A (fr) | 1938-01-25 |
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