Inventor
GRUENVOGEL KARL
DE3 patents
Patents
3 patentsUS4523732AJun 18, 1985
Adjustable stand for optical observation instruments
ZEISS STIFTUNG114 citations94
US4264122AApr 28, 1981
Binocular observation instrument
ZEISS STIFTUNG13 citations71
US4529264AJul 16, 1985
Device for sharp-edge illumination of an observation field lying in a preselectable plane
ZEISS STIFTUNG8 citations70