U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."

Thomas Edison ; 1889

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.

Class 400/402 - By breaking toggle-linkage (e.g., to pull type-bar to print-point)

Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein the mechanism includes a toggle-linkage* assemblage
No. of patents: 0