Darrel E. Cardy

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Whitehall, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Color former composition and microcapsules containing the composition
- Patent number 6,217,643
- Issue date Apr 17, 2001
- ESCO Company
- Francis R. Kearney
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS