1. Specification for microscope objective and nosepiece threads. (29th November 1962) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Transportable gas container valves. Valves with taper stems (excluding valves used for breathing and medical purposes) Part 1, (17th October 1962) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (46 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗