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- Ufficio Marconi, Roma, 378 results
- Giovagnoli Enrica, 180 results
- Marconi's Wireless Telegraph Co. Ltd., Londra, 173 results
- Electrical and Musical Industries Ltd. - E.M.I., Hayes (Middlesex), 111 results
- Westminster Bank, Londra, 79 results
- Marconi Offices, Londra, 77 results
- Giovagnoli Raffaello, 68 results
- SocietĂ italiana Marconi, Roma, 62 results
- Marconi International Marine Communications Co. Ltd., 57 results
- Formichi Carlo, 50 results