How to obtain a patent and what to invent
A 1915 promotional handbook from J. L. Waters & Co., patent attorneys in Washington, D.C., explaining patent procedure and suggesting inventions to pursue, aimed at prospective American inventors. Halftone office photographs of draftsmen, typists and clients sit beside line drawings of patentable articles: a chain-drive motor buggy in side elevation, a cherub-and-flower cast ornament frame, and similar mechanical and decorative diagrams useful as period technical or ornamental clip art.
