Bibliographic data
Privilege
- Shelfmark:
- 27/000616
- granted on:
- 1877-08-03
- Title:
- Verbesserungen an Elektrotelegraphen
- Key:
- 1877/000361
- Place of publication:
- London
- Country:
- United Kingdom of Great Britain and Northern Ireland
- Class:
- 21 - Elektrische Apparate, Telegraphie und Telephonie
- Collection:
- General