An angle comparator for laboratory use
By: by H. Lloyd, A.F.T. Simmons and G.E. Winder
Contributors: Lloyd, H.
Series: Research reports series -- no. 37; Research report (Safety in Mines Research Establishment (Great Britain)) -- no. 37.
Publisher: Safety in Mines Research Establishment
Published: 1952
Language: eng
Number of pages: 12
Notes: Typewriter script.