why were chainsaws invented
2 comments
lets-do-this[OP]
09.02.2021 15:37
Linkwhen babies couldn't fit through or they would get stuck in the pelvis, parts of bone and cartilage were removed to create more space for the baby. ... However, in the 1780s, in a bid to make the removal of the pelvic bone easier and less time-consuming two doctors named John Aitken and James Jeffray invented the chainsaw.
lets-do-this[OP]
09.02.2021 15:37
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