John Sweetman Eiffe

Account of Improvements in Chronometers, Made by John Sweetman Eiffe

Account of Improvements in Chronometers, Made by Mr. John Sweetman Eiffe; for Which a Reward was Granted to him by the Lords Commissioners of the ... of a Patent for Improvements in C

Account of Improvements in Chronometers, Made by Mr. John Sweetman Eiffe; for Which a Reward Was Granted to Him by the Lords Commissioners of the Admiralty. with an Appendix, Containing Mr. Robert Molyneux's Specification of a Patent for Improvements in C

Account of improvements in chronometers

Account of improvements in chronometers, made by Mr. John Sweetman Eiffe