Andrew; Herbert Francis
Patent Applications and Registrations
Patent applications and USPTO patent grants for Andrew; Herbert Francis.The latest application filed is for "azo dyestuffs".
- Andrew; Herbert Francis - Manchester EN
| Patent | Date |
|---|---|
| Azo dyestuffs Grant 4,091,021 - Andrew , et al. May 23, 1 | 1978-05-23 |
| Phosphonophenylaminonaphthalene compounds Grant 4,051,175 - Andrew , et al. September 27, 1 | 1977-09-27 |
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