Hu-Chu Tsai

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Hingham, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for dyeing human hair with cationic polymeric dyes
- Patent number 4,182,612
- Issue date Jan 8, 1980
- The Gillette Company
- Phillip E. Sokol
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE