BE477661A - - Google Patents

Info

Publication number: BE477661A
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.)

1939-02-03

Publication of BE477661A publication Critical patent/BE477661A/xx

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/04—Electron multipliers
- H01J43/28—Vessels, e.g. wall of the tube; Windows; Screens; Suppressing undesired discharges or currents

BE477661D 1939-02-03 BE477661A (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB260192X		1939-02-03

Publications (1)

Publication Number	Publication Date
BE477661A true BE477661A (de)

Family

ID=10237073

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE477661D BE477661A (de)	1939-02-03

Country Status (5)

Country	Link
US (1)	US2581460A (de)
BE (1)	BE477661A (de)
CH (1)	CH260192A (de)
FR (1)	FR862597A (de)
GB (1)	GB524658A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3647286A (en) *	1969-02-10	1972-03-07	John H Delorme Jr	Reproduction apparatus using photovoltaic material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2027025A (en) *	1932-12-31	1936-01-07	Rca Corp	Photo-electric device
NL50262C (de) *	1937-03-30
NL50859C (de) *	1937-03-30	1941-08-16

0
- BE BE477661D patent/BE477661A/xx unknown
1939
- 1939-02-03 GB GB3658/39A patent/GB524658A/en not_active Expired
- 1939-12-28 FR FR862597D patent/FR862597A/fr not_active Expired
1947
- 1947-04-09 CH CH260192D patent/CH260192A/de unknown
- 1947-08-07 US US767018A patent/US2581460A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
GB524658A (en)	1940-08-12
CH260192A (de)	1949-02-28
US2581460A (en)	1952-01-08
FR862597A (fr)	1941-03-10

Publication	Publication Date	Title
FR849687A (de)	1939-11-29
BE432228A (de)
BE431181A (de)
BE433845A (de)
BE477661A (de)
BE433994A (de)
NL55913C (de)
NL54530C (de)
BE440968A (de)	1941-04-30
BE436027A (de)
BE436022A (de)
BE436021A (de)
BE436007A (de)	1939-09-30
BE435988A (de)	1939-09-30
BE435911A (de)
BE435823A (de)
BE435757A (de)
BE403779A (de)
BE435664A (de)	1939-08-31
BE421934A (de)
BE435654A (de)
BE435601A (de)
BE435474A (de)
BE435413A (de)
BE435335A (de)