900 lines auto extn. to Patna Main Exchange900 lines auto extn. to Patna Main Exchange
| Keywords | Electric House Installations Telegraphs Radios Telephones Posts |
| Ministry/ Department/ Residency | Ministry of Communication |
| Branch | Directorate General of Posts and Telegraphs |
| From Year / Date (YYYY-MM-DD) |
1959 |
| To Year / Date (YYYY-MM-DD) |
1959 |
| Source Organization | NA |
| Identifier | NAIDLF00100052 |
| File No./Reference No./Sheet No./Folio No. | No. 21-29/58-P |
| Location | R-2 |
| Part No. | NA |
| File Size | 236.2 MB |
| Pages | 131 |
| Call Number | NA |
| Publisher | NA |
| Subject | NA |
| Creator | NA |
| Accession Number | NA |
| Series | NA |
| Year of Publication | NA |
| Language | English |
| Bundle Barcode | NAIDLB00004415 |
| Location Code | NA |
| File Barcode | NAIDLF00100052 |
| QC Certificate No. | QC_20241205DL |
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