Bibliographic data
Privilege
- Shelfmark:
- 25/000108
- granted on:
- 1875-01-18
- Title:
- Luftdrucksignalsystem
- Key:
- 1875/000370
- Place of publication:
- London
- Country:
- United Kingdom of Great Britain and Northern Ireland
- Class:
- 74 - Signalwesen (außer Eisenbahnsignalwesen)
- 20 - Eisenbahnbetrieb
- Collection:
- General