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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