Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4397085 | Method of manufacture of a multi-wire nonimpact printhead A method of making a plurality of multi-wire nonimpact printheads provides precise inter-wire spacing accuracy and repeatability of manufacturing steps to enable mass production. A plurality of slats are molded, one alongside another on a cylindrical supp... | 08/09/1983 |