U.S. federal trademark · Serial No. 74404455 · Reg. No. 1918732
transparency presentation system for an overhead optical projector, the system comprising a registration frame for the transparencies to be projected, a focus transparency for adjusting the focus of the projector, a sleeve for the focus transparency, and a transportable case
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.