Elaine A. Helfrich

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Elkhart, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Stabilized Romanowsky stain solution
- Patent number 4,392,864
- Issue date Jul 12, 1983
- Miles Laboratories, Inc.
- Elaine A. Helfrich
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...