How to make inventions; or, Inventing as a science and an art
A practical guide to devising and patenting mechanical improvements, written by Edward P. Thompson and published by D. Van Nostrand in New York in 1893 for inventors and engineers. The plates are patent-style line engravings of valves, spindles, springs and lamp fittings, drawn in section and elevation with hatched cut surfaces and italic letter keys usable as diagram vocabulary.
