Copy Letter from Richard Trevithick to John Gerrard Regarding a Patent Application

Copy of a letter regarding an application for a patent for a gun carriage by a ‘Mr. Broderip’. An investigation is to be made into whether this clashes with Richard Trevithick’s gun carriage invention and Trevithick asks for Gerrard’s assistance in this matter. (1 sheet/1 p.) See TREVF/4/7 on the same subject.