Rotary Valve Spring,Rotary Valve Spring Seating

Michell, Anthony G., Rotary Valve Spring,Rotary Valve Spring Seating (14 October 1925-20 October 1925), [UMA-ITE-2007006801138]. University of Melbourne Archives, accessed 01/05/2026, https://archives.library.unimelb.edu.au/nodes/view/313871