PL264555A1 - Method of and optical system for obtaining a real image consisting o of two adjustably selected images of fragment of the object being observed
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Method of and optical system for obtaining a real image consisting o of two adjustably selected images of fragment of the object being observed
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PL26455587A1987-03-101987-03-10Method of and optical system for obtaining a real image consisting o of two adjustably selected images of fragment of the object being observed
PL149775B1
(en)