Watt's end measuring machine
1776
1776
1805
1913-1929
1922-1928
1920-1939
1944
circa 1981
circa 1960
1878-1867 (design)
1850-1900
1920-1939
1826-1894
1881
1893
1930
1900
circa 1900
1960
1801-1811
1801-1811
1889
1876
earliest 1909
1924
1939
1876
1875
1856
1901
1883
circa 1960
circa 1910
1884
circa 1890
1889
1826-1894
circa 1882
1910-1940
1930-1950
1745