CALCULATORS
INVENTED BY CHRISTEL HAMANN ...
![](../mercedes/meuklid/hameeu38.jpg)
MERCEDES-EUKLID MODEL 38MS w. MECHANICAL M E M O R Y
![](../hamann/manus/haman2.jpg)
HAMANN-MANUS MODEL E
![](../hamann/automat/ha-auto-s2.jpg)
HAMANN-AUTOMAT MODEL S
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impressum:
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© C.HAMANN http://public.beuth-hochschule.de/~hamann 09/10/11