Patents relating to Gyro-compasses, 1915-1937
Patents relating to Gyro-compasses, 1915-37
Record Details
| Item reference: | ACO/4/26 |
|---|---|
| Catalogue Section: | Public records: records of the central administration of the Royal Navy and the Merchant Navy |
| Level: | ITEM |
| Extent: | 1 folder |
| Date made: | 1915 - 1937 |
| Creator: | Admiralty Compass Observatory |
| Credit: | © Crown copyright. National Maritime Museum, Greenwich, London |