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davidelahoz

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Any Watch/clock Experts Out There?

I have read that a Spanish man, Antonio Canseco (1838-1917) patented a watch (or clock) mechanism that worked without weights. The illustration I have seen shows a watch. Everything I have seen is in...
21:30 Sat 06th Dec 20147 answers, last by davidelahoz 15:52 Sun 15th May 2016

Only 1 question