Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!henry From: henry@utzoo.UUCP (Henry Spencer) Newsgroups: net.graphics Subject: Re: exclusive-ORed cursors Message-ID: <6018@utzoo.UUCP> Date: Fri, 4-Oct-85 14:19:51 EDT Article-I.D.: utzoo.6018 Posted: Fri Oct 4 14:19:51 1985 Date-Received: Fri, 4-Oct-85 14:19:51 EDT References: <588@stc-b.stc.UUCP> <5988@utzoo.UUCP> <914@turtlevax.UUCP>, <745@terak.UUCP> Organization: U of Toronto Zoology Lines: 9 > The use of exclusive-OR to draw and erase cursors, rubber band lines, > etc. is covered by patent number 4,197,590... > Nearly as I can tell, the company that holds that patent produces no > products; its only income is from license fees on that patent. It would be nice to know name, address, and telephone number. -- Henry Spencer @ U of Toronto Zoology {allegra,ihnp4,linus,decvax}!utzoo!henry Brought to you by Super Global Mega Corp .com