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RefNoRBO/12/47
AltRefNoRBO.12.808
LevelItem
TitleDescriptions of some mechanical inventions
Date1724
Description- a spring to avoid any shipwreck that might be caused by stormy weather
- a watch to be wound up by the ring so that no dust can enter it
- a cannon to be charged at the breech
- a pair of spectacles made to spring out of the case with an easy spring
- a pair of buckles of a single piece without any tongues

All with figures in text
Read to the Royal Society on 4 February 1724
LanguageFrench
Extent3 sides
FormatManuscript
Digital imagesView item on Science in the Making
AccessStatusOpen
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