Another name for a typewriter with an "upstrike" design is the "visible typewriter" or "visible writing machine."
Another name for a typewriter with an "upstrike" design is an "overstrike" typewriter.
Another name for a typewriter with an "upstrike" design is an "understroke" typewriter. To find this answer, you can search for information about typewriter designs, particularly those that differentiate between "upstrike" and "understroke" typewriters. These terms refer to the direction in which the typebars strike the platen (where the paper is located). In an upstrike typewriter, the typebars strike the platen from beneath it, while in an understroke typewriter, the typebars strike the platen from above it.
