The Vergnet footpump 1 Glenda McMahon Ken Chatterton 10.17028/rd.lboro.7959281.v1 https://repository.lboro.ac.uk/articles/figure/The_Vergnet_footpump_1/7959281 The Vergnet footpump 1 2019-05-02 11:35:11 WEDC Pumps Technical Diagram Wells International and Development Communication