What is another word for patent log?
Pronunciation: [pˈe͡ɪtənt lˈɒɡ] (IPA) 
The term "patent log" refers to a device used to measure the speed of a moving vessel. Other synonyms for this term include "ship's log," "speedometer," "nautical instrument," and "speed indicator." The invention of the patent log in the seventeenth century revolutionized navigation at sea, allowing sailors to keep track of their vessel's speed accurately and efficiently. As technology has advanced, so too have the synonyms for the patent log. Today, electronic sensors and GPS devices have largely replaced the traditional patent log, with terms such as "digital log," "wireless speedometer," and "marine GPS" commonly used in their place.
