70 razor and shaving patents is a somewhat serious, somewhat humorous meandering look at the history of shaving, as seen through patents from the last century and a half. Explore a wide range of ideas ranging from electrically heated razors to plug into the light fixtures, magnetic pseudoscience, the ever present vibrating razors, and sensible solutions for razors that were the right idea at the wrong time.
What I appreciate the most is the author’s commentary. He points out the most interesting aspects of the patent in a couple of short paragraphs. This isn’t always obvious from the patent drawing itself, so the author has done the work of reading through the patent and describing the vision and features of the invention.Dennis, review on Amazon