Nucleic Acid Purification System
1989
1989
before 1889
1989
2017
circa 1885
1962-1989
1907
1907
1907
1907
1907
1907
1907
1907
circa 1885
1895
1900
circa 1910
1980
1897
1940
1910-1913
1907
1907
1920
1890-1920
1890-1920
1890
1934
1933-1937
1982
1880-1910
before 1889
1907
2000-11-27
1922
1935
1885
1929
1960
1960
1893
1890
1885
mid-20th century