BE440557A - - Google Patents

Info

Publication number: BE440557A
Authority: BE; Belgium

Application number

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.)

1940-02-16

Publication of BE440557A publication Critical patent/BE440557A/xx

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/32—Secondary-electron-emitting electrodes
- 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
- H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
- H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/32—Secondary emission electrodes

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)

BE440557D 1940-02-16 BE440557A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE869470X		1940-02-16

Publications (1)

Publication Number	Publication Date
BE440557A true BE440557A (enrdf_load_html_response)

Family

ID=6802940

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE440557D BE440557A (enrdf_load_html_response)	1940-02-16

Country Status (2)

Country	Link
BE (1)	BE440557A (enrdf_load_html_response)
FR (1)	FR869470A (enrdf_load_html_response)

0
- BE BE440557D patent/BE440557A/xx unknown
1941
- 1941-01-23 FR FR869470D patent/FR869470A/fr not_active Expired

Also Published As

Publication number	Publication date
FR869470A (fr)	1942-02-03

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