Precision 3 Until the last century Precision pendulum clocks PPC kept the exact time for several months in observatories From there time was distributed to public clocks such as the town hall or station clock Steffen Cornehl has completed his rst PPC in 2001 The popular typical regulator dial has its origin in the precision pendulum clocks
Hinweis: Dies ist eine maschinenlesbare No-Flash Ansicht.
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