AT168423B
(en )
1951-06-11
Centered, rotationally symmetrical optical system with a concave mirror and a correction lens
FR940402A
(en )
1948-12-13
Photographic lens
DK63545C
(en )
1945-05-28
Angle-adjustable lens mount.
FR898315A
(en )
1945-04-19
Centered optical system
DK72841C
(en )
1951-07-30
Optical system with a spherical mirror, an aperture and a correction element.
FR897795A
(en )
1945-03-30
Optical articulation
CH236613A
(en )
1945-02-28
Lens.
FI23483A
(en )
1949-02-10
Optical system with spherical mirror and corrective element
DK66271C
(en )
1948-02-02
Optical system consisting of a concave, spherical mirror and a correction element, as well as a method of manufacturing the correction element.
FR897540A
(en )
1945-03-23
Photographic lens
CA407083A
(en )
1942-09-01
Optical lens
DK69098C
(en )
1949-05-02
Centered, rotationally symmetrical, optical system.
FR881346A
(en )
1943-04-21
Mirror
CA402000A
(en )
1942-01-06
Photographic lens
CA401998A
(en )
1942-01-06
Photographic lens
FR941174A
(en )
1949-01-04
Advanced optical systems including lenses
CA412677A
(en )
1943-05-25
Mirror light
AU116659B2
(en )
Improvements in or connected with lenses for optical purposes
CA407402A
(en )
1942-09-15
Ophthalmic lens
CA409481A
(en )
1942-12-22
Light projector and metal mirror
ES157783A1
(en )
1943-03-01
AN OPTICAL SYSTEM WITH A SPHERICAL MIRROR AND A CORRECTION ELEMENT
CA416731A
(en )
1943-11-30
Photographic lens attachment
AU117044B2
(en )
Reflective optical system
FR897805A
(en )
1945-04-03
Lenses and optical system equipped with such lenses
CA416736A
(en )
1943-11-30
Photographic lens