EntityQ48988· pop 7· linked from 4 articlesMarie KillickSign in to saveEnglish audio engineer who patented the truncated-tip sapphire stylus in 1945 for playing gramophone recordsConnectionsLondonCityEnglandEntityWorld War IIConceptInternational Standard Book NumberEntityAntwerpEntityEnglish peopleEntitySurreyEntitysapphireEntitybankruptcyEntityphonographEntityOCLC, Inc.Entityphonograph recordEntityGuildfordEntitylawsuitEntityHamletEntityBritish Film InstituteEntityaudio engineerEntityLeicester SquareEntityBritish War OfficeEntitypatent infringementEntityCategories1914 births1964 deaths20th-century English engineers20th-century English inventors20th-century English women engineers20th-century women inventorsBritish women inventorsEnglish audio engineersWomen audio engineers