Hofmann's apparatus for decomposing phosphuretted hydrogen
1876
1876
1920
1876
1800-1850
1800-1850
1876
1876
1876
1900
1800-1850
1888
1900-1982
1876
1876
1876
1876
1876
1876
1876
1876
1900-1980
1753
1954
1910