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Author(s)
Meadowcroft, William HenryRecipient(s)
Edison, Thomas AlvaOthers Mentioned
Moore, Sherwood Troop (Sam)
Clifford, Henry B
Philpot, Brian F
Goldstein, Ignacy
Bliss, Donald M
Weber, Peter
Aiken, Edward L
Wurth, Albert Frank
Dyer, Frank Lewis
Subject(s)
Ore exploration and miningCylinder phonograph
Cement products
Construction
Automobiles and trucks
Disc phonograph
Disc record and duplicating technology
Electric battery