The Scientific American reference book; a compendium of useful information, containing the complete census of the United States by counties ... patent and copyright laws ... forms for patents, caveats, assignments, and licenses ... etc
A reference compendium issued by Munn & Co., publishers of Scientific American, in New York in 1892, gathering census tables, patent and copyright law, and legal forms for American inventors and patent applicants. Pages of numbered line diagrams show mechanical movements — gears, cams, ratchets, pulleys, cranks, linkages — each boxed in a grid, usable as small technical spot motifs or tiled pattern.



















