Manufacturing electric light bulbs, c1883 (1896)
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Manufacturing electric light bulbs, c1883 (1896)
Manufacturing electric light bulbs, c1883 (1896). A mercury vacuum pump being used to evacuate (exhaust) light bulbs on a commercial scale. The pump being used is Geisslers as modified by Topler and was the type used by the Swan Company. From Electricity in the Service of Man by R Wormell. (London, 1896)
Media ID 14864235
© Oxford Science Archive / Heritage-Images
Bulb Electric Lighting Geissler Heinrich Innovation Light Bulb Manufacturing Oxford Science Archive
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