Bill Buxton on Twitter: "3/3 Without knowing about Mallebrein's 1968 mouse (almost nobody did), Ronald Rider reinvented the ball mouse which Xerox patented in January 1973. This is the mouse that really
![Mechanical mice - Mechanical mice Mouse mechanism diagram Operating an opto-mechanical mouse Moving - Studocu Mechanical mice - Mechanical mice Mouse mechanism diagram Operating an opto-mechanical mouse Moving - Studocu](https://d20ohkaloyme4g.cloudfront.net/img/document_thumbnails/ed44bc18858e37d883c85ee7db685cf7/thumb_1200_1553.png)
Mechanical mice - Mechanical mice Mouse mechanism diagram Operating an opto-mechanical mouse Moving - Studocu
![Paderborn, Germany. 14th May, 2019. Electrical engineer Rainer Mallebrein shows the first computer mouse. Worldwide there are only four copies left: The inventor of the very first computer mouse has now given Paderborn, Germany. 14th May, 2019. Electrical engineer Rainer Mallebrein shows the first computer mouse. Worldwide there are only four copies left: The inventor of the very first computer mouse has now given](https://c8.alamy.com/comp/T8PKPT/paderborn-germany-14th-may-2019-electrical-engineer-rainer-mallebrein-shows-the-first-computer-mouse-worldwide-there-are-only-four-copies-left-the-inventor-of-the-very-first-computer-mouse-has-now-given-away-one-of-the-rare-devices-to-north-rhine-westphalia-thats-the-primal-mouse-we-were-way-ahead-of-our-time-we-developed-them-between-1965-and-1968-when-there-were-no-personal-computers-not-even-the-word-pc-the-85-year-old-said-in-paderborn-on-tuesday-credit-dieter-mennedpaalamy-live-news-T8PKPT.jpg)