Ernemann, Alexander
[Speaker];
Henrichs, Paul
[Speaker];
Veit, Hermann
[Speaker];
Bünning, Erwin
[Speaker];
Peter, Hans
[Speaker];
Doertenbach, Ulrich
[Speaker];
Schröder, Hugo
[Speaker];
Boss, Eugen
[Speaker];
Grunert, Oskar E.
[Speaker];
Richter, Erich B.
[Speaker];
Schmincke, Carl
[Speaker];
Kraatz, Joachim
[Speaker];
Wohlfahrt, Wilhelm
[Other]
;
Zeiss Ikon AG