| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 08.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Mfg method - Cyclizing HOOC-CH2-CH(SO3Na)-COOH - Opening ring in presence of NH2OH to form NaO3S-hydro xamic acid - Dehydration |
| PATENT PHOTOCOPY | Available on request |
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