L E T T E R S C A L E BILATERAL / Germany (1930)
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Metric: Scale-1 = 0 ... 50 Gram ; Scale-2 = 0 ... 250 Gram
This bilateral balanced scale doesn't need levelling
HOW MECHANICAL SCALES WORK ...
impressum:
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© C.HAMANN http://public.BHT-Berlin.de/hamann 09/09/07
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