5 Free Photos of Historical Air Pumps

cc-zerocc-pd-markauthor died more than 100 years ago public domain imagesscientific instruments in the harvard university science center
Air pump by William and Samuel Jones, London, 1804 - Putnam Gallery - Harvard University - DSC07935
self-published workcc-pd-mark
Air pump with flywheel for rotating and rubbing objects together in vacuo, by Abbe Jean-Antoine Nollet, Paris, c. 1746, shown with Magdeburg hemispheres - Putnam Gallery - Harvard University - DSC07933
self-published workcc-pd-mark
Control cylinder slide box steam air pump
circlemuseum
Heat Pump Air-Conditioning Unit (8621831347)
historicalhistory
13x18 (2 fotos) Luchtpompen, Bestanddeelnr 256-1232
historicalair pump
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