TY - BOOK AU - Aked,Charles Kenneth TI - Electric clock patents for the period 1840-1900 PY - 1991/// CY - [Place of publication not identified] PB - NAWCC Chapter 78, Electrical Horology Society KW - Clocks and watches, Electric KW - Great Britain KW - Patents KW - 19th century KW - Bibliography KW - Clock (general) KW - United Kingdom KW - patents KW - electrical electromechanical electronic clock KW - Aked Charles K KW - ElectricalScience N1 - Includes index; Journal of the Electrical Horology Society, volume 17(4), December, 1991 ER -