Patent Office Improvements relating to von-exchange apparatus
| Keywords | Permutit Co. Ltd. DePENNING valve apparatus regenerating |
| Ministry/ Department/ Residency | PATENTS AND DESIGNS KOLKATA |
| Branch | Kolkata |
| From Year / Date (YYYY-MM-DD) |
1963 |
| To Year / Date (YYYY-MM-DD) |
1963 |
| Identifier | NAIBHF00011150 |
| File No./Reference No./Sheet No./Folio No. | 90736 |
| Location | BBSR-R1 |
| File Size | 77.6 MB |
| Pages | 46 |
| Language | English |
| Bundle Barcode | NAIBHB00000367 |
| File Barcode | NAIBHF00011150 |
| QC Certificate No. | QC_20240712BH |
| Bundle No. | 175 |
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