William Joseph Hammer

William Joseph Hammer in 1881 William Joseph Hammer (February 26, 1858 – March 24, 1934) was an American pioneer electrical engineer, aviator, and president of the Edison Pioneers. Provided by Wikipedia
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  1. 1
    Radium, and other radio-active substances ; polonium, actinium, and thorium. With a consideration of phosphorescent and fluorescent substances, the properties and applications of selenium, and the treatment of disease by the ultra-violet light

    Radium, and other radio-active substances ; polonium, actinium, and thorium. With a consideration of phosphorescent and fluorescent substances, the properties and applications of s... by Hammer, William Joseph, 1858-1934

    New York : London : D. Van Nostrand company; C. Lockwood & son, 1903
    Format: Book


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  2. 2
    The telephonograph

    The telephonograph by Hammer, William Joseph, 1858-1934

    Washington : [publisher not identified], 1902
    Format: Book


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