Watt's end measuring machine
1776
1776
1760-1770
1776-1780
1776-1780
1776-1780
1769
1784
1762
1762
1782
1770
1762
1762
1761
1762
1762
1762
1762
1762
1778
1783
2000-100 BCE
1761
1784
1762
1778
1764
circa 1780
1770
1990-96
1760-1772
1771
1775
1776-1780
1776-1780
1705-1737
1760-1775
1765
1772 (original); 1919 (model)
1769
1775
1760-1775 probable date
1784
1784
1783
1776
1778-1780
1780
4000-2001 BCE
1760