NL27285C - - Google Patents
Info
- Publication number
- NL27285C NL27285C NL27285DA NL27285C NL 27285 C NL27285 C NL 27285C NL 27285D A NL27285D A NL 27285DA NL 27285 C NL27285 C NL 27285C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/261—In terms of molecular thickness or light wave length
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US218998A US1921065A (en) | 1927-09-12 | 1927-09-12 | Electron emitter and process of making same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL27285C true NL27285C (https=) |
Family
ID=22817366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL27285D NL27285C (https=) | 1927-09-12 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1921065A (https=) |
| BE (1) | BE352966A (https=) |
| FR (1) | FR658058A (https=) |
| GB (1) | GB297028A (https=) |
| NL (1) | NL27285C (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5022883A (en) * | 1990-11-06 | 1991-06-11 | The United States Of America As Represented By The Secretary Of The Army | Method of making a long life high current density cathode from aluminum oxide and tungsten oxide powders |
-
0
- NL NL27285D patent/NL27285C/xx active
- BE BE352966D patent/BE352966A/xx unknown
-
1927
- 1927-09-12 US US218998A patent/US1921065A/en not_active Expired - Lifetime
-
1928
- 1928-06-13 GB GB17102/28A patent/GB297028A/en not_active Expired
- 1928-07-25 FR FR658058D patent/FR658058A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE352966A (https=) | |
| US1921065A (en) | 1933-08-08 |
| FR658058A (fr) | 1929-05-30 |
| GB297028A (en) | 1929-08-08 |