Brunsviga B System Odhner Resulta BS7 Adix Ken + Add Produx Multator 4 Victor 7-56-4
Otis King Rechenwalze Aristo Scholar 303 Torpedo Schnelladdiermaschine Thales KA
Ferrari Proportional-Maßstab Suan Pan Madix HM
Bunzel Rechenmaschine American Adding Machine Mercedes Euklid 1 Hydrovar Energie Disk Maximator
© Wolf-G. Blümich
17.03.2006