ANSI/ISO 7943.2:1987 Audiovisual Systems - Overhead Projectors - Transparencies and Transparency Frames (dimensions) / Note: reaffirmation and redesignation of ANSI/ISO 7943.2-1987 and ANSI IT7.212-1989
1987ANSI/ISO 7943.2:1987 Audiovisual Systems - Overhead Projectors - Transparencies and Transparency Frames (dimensions) / Note: reaffirmation and redesignation of ANSI/ISO 7943.2-1987 and ANSI IT7.212-1989