NL74193C - - Google Patents

Info

Publication number: NL74193C
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.)

1948-05-10

Publication of NL74193C publication Critical patent/NL74193C/xx

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
- H01J37/06—Electron sources; Electron guns
- H01J37/063—Geometrical arrangement of electrodes for beam-forming

Landscapes

Chemical & Material Sciences (AREA)
Analytical Chemistry (AREA)
Electron Beam Exposure (AREA)

NL74193D 1948-05-10 NL74193C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH985831X		1948-05-10

Publications (1)

Publication Number	Publication Date
NL74193C true NL74193C (en)

Family

ID=4551548

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL74193D NL74193C (en)	1948-05-10

Country Status (4)

Country	Link
CH (1)	CH265972A (en)
DE (1)	DE809221C (en)
FR (1)	FR985831A (en)
NL (1)	NL74193C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL7906958A (en) *	1979-09-19	1981-03-23	Philips Nv	METAL WIRE CATHOD FOR ELECTRON RADIUS.

0
- NL NL74193D patent/NL74193C/xx active
1948
- 1948-05-10 CH CH265972D patent/CH265972A/en unknown
- 1948-11-16 DE DEP21813A patent/DE809221C/en not_active Expired
1949
- 1949-05-10 FR FR985831D patent/FR985831A/en not_active Expired

Also Published As

Publication number	Publication date
DE809221C (en)	1951-07-26
FR985831A (en)	1951-07-24
CH265972A (en)	1949-12-31

Publication	Publication Date	Title
FR961944A (en)	1950-05-25
AT166638B (en)	1950-08-25
FR971712A (en)	1951-01-22
BE469104A (en)
BE267826A (en)
BE393137A (en)
BE404066A (en)
BE412124A (en)
BE429008A (en)
BE43050A (en)
BE461649A (en)
BE477919A (en)
BE478011A (en)
BE478240A (en)
BE479349A (en)	1948-01-31
BE479350A (en)
BE479540A (en)
BE479713A (en)
BE479830A (en)
BE479891A (en)
BE480221A (en)
BE480353A (en)
BE480366A (en)
BE480805A (en)
BE480956A (en)