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  • Technology (2)
    • Technology & Inventions (2)
      • Patents (inventions) (2)

A list of patents granted under the old law, 1617 to 1852, to persons resident in cornwall: compiled from the official indexes by Richard B. Prosser ([1900?)

Richard Prosser

A list of patents granted under the old law, 1617 to 1852, to persons resident in Devonshire: compiled from the official indexes by Richard B. Prosser ([1900?)

Richard Prosser