Pressure Ring (High Pressure), Scraper Ring (High Pressure)

Michell, Anthony G., Pressure Ring (High Pressure), Scraper Ring (High Pressure) (3 August 1925-14 September 1925), [UMA-ITE-2007006801041]. University of Melbourne Archives, accessed 18/04/2026, https://archives.library.unimelb.edu.au/nodes/view/313774