NL32239C - - Google Patents

Info

Publication number: NL32239C
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.)

1930-09-17

Publication of NL32239C publication Critical patent/NL32239C/xx

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/50—Thermionic-cathode tubes
- H01J17/58—Thermionic-cathode tubes with more than one cathode or anode

NL32239D 1930-09-17 NL32239C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US482425A US1913427A (en)	1930-09-17	1930-09-17	Electric discharge device

Publications (1)

Publication Number	Publication Date
NL32239C true NL32239C (en)

Family

ID=23916019

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL32239D NL32239C (en)	1930-09-17

Country Status (4)

Country	Link
US (1)	US1913427A (en)
DE (1)	DE675603C (en)
GB (1)	GB379736A (en)
NL (1)	NL32239C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2432608A (en) *	1941-03-28	1947-12-16	Ncr Co	Multianode, gas-filled discharge device
US2601528A (en) *	1946-07-13	1952-06-24	Sylvania Electric Prod	Structure and internal shielding of electron tubes
US2476940A (en) *	1947-05-22	1949-07-19	Raytheon Mfg Co	Subminiature type vacuum tube structure
US4230968A (en) *	1976-05-26	1980-10-28	Hitachi, Ltd.	Cathode structure for magnetrons

0
- NL NL32239D patent/NL32239C/xx active
1930
- 1930-09-17 US US482425A patent/US1913427A/en not_active Expired - Lifetime
1931
- 1931-06-04 GB GB16230/31A patent/GB379736A/en not_active Expired
- 1931-07-09 DE DEI42021D patent/DE675603C/en not_active Expired

Also Published As

Publication number	Publication date
GB379736A (en)	1932-09-05
US1913427A (en)	1933-06-13
DE675603C (en)	1939-05-15

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