Daniel J. Shoff

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Torrance, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Teaching and entertainment device
- Patent number 4,492,582
- Issue date Jan 8, 1985
- Mattel, Inc.
- Richard S. Chang
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Digitally driven audio effects generator
- Patent number 4,375,061
- Issue date Feb 22, 1983
- Mattel, Inc.
- Daniel J. Shoff
- G08 - SIGNALLING