MAKE A MEME View Large Image Hand pump.png Schematic of deep well piston water hand pump Author Peacecorps modified by R Castelnuovo myself 2005 09 16 17 65 CET PD-USGov Piston water pumps Human-powered pumps 04
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Keywords: Hand pump.png Schematic of deep well piston water hand pump Author Peacecorps modified by R Castelnuovo myself 2005 09 16 17 65 CET PD-USGov Piston water pumps Human-powered pumps 04
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