Clipart tagged: ‘who was Sprengel’

Sprengel's vacuum pump. c d is a long glass tube. A is a funnel, R is a receiver, B is a flask and H is a dish. This vacuum pump was invented by Hanover native Hermann Sprengel in 1865

Vacuum Pump

Sprengel's vacuum pump. c d is a long glass tube. A is a funnel, R is a receiver, B is a flask and H…

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