David H. Blankenhorn

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Pasadena, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Dietary aid for accumulating machine readable information
- Patent number 4,303,854
- Issue date Dec 1, 1981
- David H. Blankenhorn
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Dietary aid
- Patent number 3,980,866
- Issue date Sep 14, 1976
- David H. Blankenhorn
- G06 - COMPUTING CALCULATING COUNTING