Portable monocular microscope
1970-1985
Apochromatic microscope with interchangeable monocular and binocular heads
1930-1940
Stereoscopic microscope
1950-1965
Binocular research microscope
1950-1965
Binocular phase contrast microscope
1955-1970
Microspectrometer, Abbe type
1890-1900
Monocular microscope with triple nosepiece and mechanical stage
1940-1955
Research microscope by Optomax
1958-1960
Ultramicrotome, type 4801A
1965-1975
Portable field microscope
1970-1985