Patent
Suchergebnisse für: Bergmann Universal Ges.
- Patent:GB203699 05.09.1922 Bergmann, Jean (P) Bergmann Universal Ges. (P), CBR (P) : Cases convertible into supports (for an adding-device)
- Patent:GB223227 09.10.1923 Bergmann, Jean (P) Bergmann Universal Ges. (P), CBR (P) : Adding and subtracting apparatus