Specification of John Allen : construction of boilers : apparatus for drying malt, etc. : propelling vessels : applying explosive force of gunpowder to obtain motive power.

  • Allen, John.
Date:
1854

Licence: Public Domain Mark

Credit: Specification of John Allen : construction of boilers : apparatus for drying malt, etc. : propelling vessels : applying explosive force of gunpowder to obtain motive power. Source: Wellcome Collection.

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