File:Jacob Leupold's vacuum pump of 1709, Dresdem museum of Technical Instruments.jpg

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English: Jacob Leupold's vacuum pump of 1709, Dresdem museum of Technical Instruments
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Author Stephencdickson

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Jacob Leupold's vacuum pump of 1709, Dresdem museum of Technical Instruments

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22 May 2024

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current22:27, 4 June 2024Thumbnail for version as of 22:27, 4 June 20243,088 × 2,056 (1.32 MB)StephencdicksonUploaded own work with UploadWizard

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