
Watt's end measuring machine
1776
1776
circa 1848
circa 1850
1869 to 1897
1805
Made late 1700s, modified 1800s
1855
1919
1913-1929
1973
circa 1981
1778
circa 1960
1939-1946
circa 1965
1892
1973
1973
N. K.
1860-1895
1904
1801-1811
1826
N. K.
not Known
1801-1811
1881
1896-1918
1920-1939
1826-1894
1944
1942
pat 1893.
1922-1928
1878
1842-1846