CH131687A - Process for the production of hot cathodes. - Google Patents

Process for the production of hot cathodes.

Info

Publication number
CH131687A
CH131687A CH131687DA CH131687A CH 131687 A CH131687 A CH 131687A CH 131687D A CH131687D A CH 131687DA CH 131687 A CH131687 A CH 131687A
Authority
CH
Switzerland
Prior art keywords
production
hot cathodes
cathodes
hot
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Publication of CH131687A publication Critical patent/CH131687A/en

Links

CH131687D 1927-02-16 1928-02-13 Process for the production of hot cathodes. CH131687A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR131687X 1927-02-16

Publications (1)

Publication Number Publication Date
CH131687A true CH131687A (en) 1929-02-28

Family

ID=8873922

Family Applications (1)

Application Number Title Priority Date Filing Date
CH131687D CH131687A (en) 1927-02-16 1928-02-13 Process for the production of hot cathodes.

Country Status (1)

Country Link
CH (1) CH131687A (en)

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