Pulvermacher's patent portable hydro-electric chain for personal use : (inventor and patentee- J.L. Pulvermacher) ... / Charles Meinig.

  • Meinig, Charles.
Date:
1851

Licence: Public Domain Mark

Credit: Pulvermacher's patent portable hydro-electric chain for personal use : (inventor and patentee- J.L. Pulvermacher) ... / Charles Meinig. Source: Wellcome Collection.

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