"a duplicator (trade mark Xerox) that copies graphic matter by the action of light on an electrically charged photoconductive insulating surface in which the latent image is developed with a resinous powder"@en-us . . . . . . "Xerox"^^ . . "103637111"@en-us . "104430107"@en-us . "xerographic copier"@en-us . "Xerox machine"@en-us . . . . . . "0"^^ . . . "104608923"^^ . . . . "04608923-n"^^ . . "Xerox"@en-us . . . "0"^^ . . .