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Category:
Holland, John
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Holland, John
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Subcategories
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Main Categories
Armstrong, Edwin H
Bell, Alexander, Graham
Berliner, Emile
Bessemer, Henry
Edison, Thomas Alva
Hackworth, Timothy
Heron of Alexandria
Holland, John
Lake, Simon
Marconi, Guglielmo
Meucci, Antonio Santi Giuseppe
Morse, Samuel Finley Breese
Murdoch, William
Pope, Frank
Telford, Thomas
Trevithick, Richard
Watt, James
Westinghouse, George
Whitworth, Sir Joseph
