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Title: Vacuum pump [Go to resource]
Description: The hand-pump used to evacuate the free pendulum chamber to Shortt No. 40. RGO Collection caption: Record Shot - Do not reproduce. Publisher: "http://collections.rmg.co.uk/" Rights holder: "Royal Museums Greenwich" Source: Royal Museums Greenwich Identifier: http://collections.rmg.co.uk/collections... Go to resource More Like this...
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