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one apparatus
chevron_right
1800 - 1854
1855 - 1885
1886 - 1894
1895 - 1966
1967 - 2000
English (2012)
two apparatuses
chevron_right
1800 - 1840
1841 - 1952
1953 - 1964
1965 - 1978
1979 - 2000
English (2012)