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searching for Rolling ball clock 2 found (7 total)

Robert Bryson (319 words) [view diff] exact match in snippet view article find links to article

as Watch and Clock Maker to Queen Victoria. Robert Bryson made a rolling ball clock in 1804, four years before the design was patented by William Congreve

Thwaites & Reed (1,520 words) [view diff] case mismatch in snippet view article find links to article

of replica clocks (including the Benjamin Franklin Clock, Congreve Rolling Ball Clock, two reproductions of the historical Giovanni di Dondi clock (by Peter