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Engraving depicting Hermann Sprengel's exhausting pump. Hermann Sprengel (1834-1906) a..., Stock Photo, Picture And Rights Managed Image. Pic. IAM-WHA-099-0220 | agefotostock
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Engraving depicting Hermann Sprengel's vacuum pump. Hermann Sprengel (1834-1906) a German-British..., Stock Photo, Picture And Rights Managed Image. Pic. IAM-WHA-099-0219 | agefotostock
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Engraving depicting Hermann Sprengel's air pump. Hermann Sprengel (1834-1906) a German-British chemist. Dated 19th Century Stock Photo - Alamy
The Sprengel Pump Is A Vacuum Pump That Uses Drops Of Mercury Falling Through A Smallbore Capillary Tube To Trap Air From The System To Be Evacuated Stock Illustration - Download Image
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On A Method Of Obtaining And Measuring Very High Vacua With A Modified Form Of Sprengel-Pump
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A vacuum pump invented by Hanover-born chemist Hermann Sprengel in 1865. This pump could be run continuously and without any supervision to achieve th Stock Vector Image & Art - Alamy