Electrical switching systems in automatic telephone systems. Automatic telecommunication exchanges.
| Keywords | Patent Office India Government Telephones Cables Designs |
| Ministry/ Department/ Residency | PATENTS AND DESIGNS KOLKATA |
| Branch | Kolkata |
| From Year / Date (YYYY-MM-DD) |
1963 |
| To Year / Date (YYYY-MM-DD) |
1963 |
| Source Organization | NA |
| Identifier | NAIBHF00010870 |
| File No./Reference No./Sheet No./Folio No. | 90456 |
| Location | BBSR-R1 |
| Part No. | NA |
| File Size | 70.8 MB |
| Pages | 42 |
| Call Number | NA |
| Publisher | NA |
| Subject | NA |
| Creator | NA |
| Accession Number | NA |
| Series | NA |
| Year of Publication | NA |
| Language | English |
| Bundle Barcode | NAIBHB00000369 |
| Location Code | NA |
| File Barcode | NAIBHF00010870 |
| QC Certificate No. | QC_20240711BH |
| Bundle No. | 177 |
Other Similar Items
-
- Patent Application - Switching Gear for the Remote...
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1962
-
- Patent Application: Automatic Telephone & Electric...
- Department: PATENTS AND DESIGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1963
-
- 2 Views
- Connection of the Mysore Government Automatic Tele...
- Department: Mysore Residency
- Branch: Mysore Residency Bangalore (War)
- Year / Date: 1939
-
- Correction system for electrical circuits or equip...
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1963
-
- Patent Application: Electric Signalling, Telephone...
- Department: PATENTS AND DESIGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1963
-
- Patent Application - Electric Switches and Telepho...
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1953
-
- 6 Views
- 1. The question of opening a departmental exchange...
- Department: Ministry of States
- Branch: Internal A
- Year / Date: 1948
-
- 8 Views
- Telephone connections in the Foreign office, Calcu...
- Department: Foreign
- Branch: General
- Year / Date: 1908-12
-
- 5 Views
- Telephone connections in the Foreign office, calcu...
- Department: Foreign and Political
- Branch: General-B
- Year / Date: 1908
-
- 4 Views
- Cable wire - Cut lengths - Importation under the s...
- Department: Central Board of Revenue
- Branch: Customs Duties
- Year / Date: 1925
