Hand Pump - Evolution and Current Designs

Hand Pump is a machine using Slider - Crank Mechanism ( It is an inversion of Slider - Crank Mechanism)

http://www.geetaengg.co.in/shallow-hand-pump.html  Prices on 24 April 2017


http://www.waterhandpumps.com/4no-stainless-steel-handpump.html

http://interaide.org/watsan/sl/price-list-for-india-mark-ii-and-kardia-hand-pumps/

http://www.aovinternational.com/hand-pumps.html