Xerox 4000 copier
May 1970: Xerox 4000 copier announced. First in the second generation of copiers and duplicators; first to provide automatic two-sided copying; 45 copies per minute.
May 1970: Xerox 4000 copier announced. First in the second generation of copiers and duplicators; first to provide automatic two-sided copying; 45 copies per minute.
