Haas Nevevx & Co. (Swiss 1828-1925) Hass, B.J. Fundador Haas Nevevx & Co. Hagen, Johan (Germany 1750) Haley, Charles (London 1781-1825) Hallewey (London 1695-1720) Hamilton & Co. (London 1865-1920) Hamilton, G. (London 1800) Harper, Henrry (London 1665-1700) Harrison, John (England 1693-1776){ Harrison John Patente Reloj Marine Nº 1-2-3-4} Hasluck Brothers (London 1695) Hautefeuille, Jean (Paris 1670-1722) Hautefeuille, John (Paris 1660-1700) Hawley, John (London 1850) Hebert, Juliette (Geneva 1890) Helbros (Geneva Desde 1918) Heler (?) Henlein, Peter (Nurnberg 1510-1540) Heliger, J. (Swiss 1575) Henner, Johann (Germany 1730) Henry, F.S. (Swiss 1850) Hentschel, J.J. (France 1750) Hess, L. (Zurich Swiss 1780) Hessichti, Dionistus (Entorno a 1630)
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