Conference of the Chiefs of Lighthouse Departments, London 1929: On the Acoustic Beaconing of an Alignment. Principle of the arrangements of the emission of sonorous waves for the production of a plane of silence following a given alignment and for its periodical balancing by Monsieur A. Blondel, Inspecteur Général des Ponts et Chaussées, Membre de l'Insitut.
- Reference No:
- C DPD/1/3/12/5/5
- Dates:
- 8 Apr 1929
- Description:
- Format:
- Archive Item
- Extent:
- 1 item
- Language:
- Access Conditions:
- Access will be granted to any accredited reader
- Repository:
- Hull City Archives
- Collection:
- Records of Humber Conservancy and the Humber Ports (Records deposited by Associated British Ports and its Predecessors)