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.)
Kern & Cie S A
Original Assignee
Kern & Cie S A
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 Kern & Cie S AfiledCriticalKern & Cie S A
Application grantedgrantedCritical
Publication of FR909531ApublicationCriticalpatent/FR909531A/fr
G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Optics & Photonics
(AREA)
FR909531D1944-03-131945-02-28Objectif photographique à correction sphérique, astigmatique et chromatique pour une ou plusieurs couleurs
ExpiredFR909531A
(fr)