Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SAfiledCriticalCSF Compagnie Generale de Telegraphie sans Fil SA
Application grantedgrantedCritical
Publication of FR1026524ApublicationCriticalpatent/FR1026524A/fr
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
H01J37/21—Means for adjusting the focus
Landscapes
Chemical & Material Sciences
(AREA)
Analytical Chemistry
(AREA)
FR1026524D1950-10-251950-10-25Dispositif facilitant la mise au point de l'image dans le microscope électronique
ExpiredFR1026524A
(fr)