Developer BIO

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Also Known As

• Norm Worthington

Websites

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Mario is Missing! (1992), Software Toolworks, Inc., The
The Miracle Piano Teaching System (1990), Software Toolworks, Inc., The
The Fidelity Chessmaster 2100 (1989), Software Toolworks, Inc., The
Mavis Beacon Teaches Typing! (1987), Software Toolworks, Inc., The
The Chessmaster 2000 (1986), Software Toolworks, Inc., The