Improvements relating to electric signalling devices
| Keywords | DePENNING Patent Calcutta OFY W. F. Delamning Detering GCF |
| Ministry/ Department/ Residency | PATENTS AND DESIGNS KOLKATA |
| Branch | Kolkata |
| From Year / Date (YYYY-MM-DD) |
1961 |
| To Year / Date (YYYY-MM-DD) |
1961 |
| Source Organization | NA |
| Identifier | NAIBHF00006022 |
| File No./Reference No./Sheet No./Folio No. | 78747 |
| Location | BBSR-R1 |
| Part No. | NA |
| File Size | 50.1 MB |
| Pages | 36 |
| Call Number | NA |
| Publisher | NA |
| Subject | NA |
| Creator | NA |
| Accession Number | NA |
| Series | NA |
| Year of Publication | NA |
| Language | English |
| Bundle Barcode | NAIBHB00000267 |
| Location Code | NA |
| File Barcode | NAIBHF00006022 |
| QC Certificate No. | QC_20240629BH |
| Bundle No. | 75 |
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