1. Cinematography. 35 mm film. Projector spools. Specification for 35 mm film spools of 610 m capacity (38 cm size) for release prints Part 3.9.1, (3rd October 1949) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Specification for silica gel acid activated for aircraft purposes. (17th October 1949) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (6 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. Specification for washers for aircraft purposes (primarily for use with timber). (10th February 1949) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (6 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗