NL40189C - - Google Patents

Info

Publication number: NL40189C
Authority: NL; Netherlands

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.)

1931-09-15

Publication of NL40189C publication Critical patent/NL40189C/xx

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

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Solid Thermionic Cathode (AREA)

NL40189D 1931-09-15 NL40189C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE395537X		1931-09-15

Publications (1)

Publication Number	Publication Date
NL40189C true NL40189C (enrdf_load_stackoverflow)

Family

ID=6396858

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL40189D NL40189C (enrdf_load_stackoverflow)	1931-09-15

Country Status (4)

Country	Link
US (1)	US2049811A (enrdf_load_stackoverflow)
FR (1)	FR742822A (enrdf_load_stackoverflow)
GB (1)	GB395537A (enrdf_load_stackoverflow)
NL (1)	NL40189C (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL274464A (enrdf_load_stackoverflow) *	1961-02-07

0
- NL NL40189D patent/NL40189C/xx active
- FR FR742822D patent/FR742822A/fr not_active Expired
1932
- 1932-09-12 GB GB25305/32A patent/GB395537A/en not_active Expired
- 1932-09-14 US US633080A patent/US2049811A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
GB395537A (en)	1933-07-20
FR742822A (enrdf_load_stackoverflow)	1933-03-17
US2049811A (en)	1936-08-04

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