2-foot folding slide rule (14 h 39 min, 21 nov 2018 ans – 1 janv. 1677)
Description:
Henry Coggeshall invented a 2-foot folding slide rule for lumber measure, called the Coggeshall slide rule.Ajouté au bande de temps:
Date:
14 h 39 min, 21 nov 2018 ans
1 janv. 1677
~ 342 years