
Edison's Original Micro-Tasimeter, 1878
1878
1878
1886
1885
1884-1886
1883
1878
1668; 1924
1883
1960-1979
1879
1783; 1914
1886
1878
1878
1880
1880
1882
1886
1879
1881
1881
1883
1886
1886
1884
1883
1887
1882
1888
1886
1884
1884
1878
1887
1886
1886
1888
1882-1883
1878
1882
1882
1825; 1910
1878
1878
1882
1884
1880
1878
1878-1883
1880