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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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.)
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Publication date
Application filed by Metropolitan Vickers Electrical Co LtdfiledCriticalMetropolitan Vickers Electrical Co Ltd
Application grantedgrantedCritical
Publication of FR1081754ApublicationCriticalpatent/FR1081754A/en
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
H01J37/20—Means for supporting or positioning the object or the material; Means for adjusting diaphragms or lenses associated with the support
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Chemical & Material Sciences (AREA)
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FR1081754D1952-08-011953-07-30 Improvements relating to electronic devicesExpiredFR1081754A (en)