| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | Toyo Boseki |
| PATENT CLAIMS |
Compn consisting of - 4,6-Diaminoresorcinol - Reducing agent with standard redox potential -0.2 - +0.34 volt in proportion 100-10,000 ppm |
| PATENT PHOTOCOPY | Available on request |
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