| Title | File of correspondence etc. concerning an improvement to trawling gear invented by Mr. Thomas Treharne Hughes and Mr. David Pettit, including claim of Mr. Hughes against the estate of David Pettit, deceased in the High Court of Justice. Also file of correspondence re proposed merger of the three firms Messrs. D. Pettit Ltd, Hakin Trawling Co., and Pettit and Youds |