Calcutta Telephone System: Conversion to Automatic Working, Site Location, and Accommodation Requirements for East Exchange
| Keywords | Transformer Switchgear East Exchange Company Power Supply Cooling Fuel Oil |
| Ministry/ Department/ Residency | Ministry of Communication |
| Branch | Directorate General of Posts and Telegraphs |
| From Year / Date (YYYY-MM-DD) |
NA |
| To Year / Date (YYYY-MM-DD) |
NA |
| Source Organization | NA |
| Identifier | NAIDLF00102421 |
| File No./Reference No./Sheet No./Folio No. | S. B. 3/2 |
| Location | R2 |
| Part No. | NA |
| File Size | 23.4 MB |
| Pages | 13 |
| Call Number | NA |
| Publisher | NA |
| Subject | NA |
| Creator | NA |
| Accession Number | NA |
| Series | NA |
| Year of Publication | NA |
| Language | English |
| Bundle Barcode | NAIDLB00004504 |
| Location Code | 004-0-017-001-02-14 |
| File Barcode | NAIDLF00102421 |
| QC Certificate No. | QC_20240708DL |
| Bundle No. | 613 |
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