Operating instructions, with handwritten notes, for an Agilent Bravo used at a COVID-19 testing centre
2020
2020
2020
2020
2020
2020
2020
2015-2018
1990-1998
1981
1980's
1980s
2020
2020
2020
2020
2020
2020
1780-1860
1885
1884
1991
1962
1920-1940
1911
1991
1906
1911
1901-01-30
1955
1895
1944
1889
1912
1894
1885
1895
1885
1926
1887
1926
1926
1891