BS A 31-54:1951 Specification for British Association (B.A.) low tensile screws and nuts for aeronautical purposes standard by BSI Group, 03/30/1951
BS SP 28 AND 29:1951 Specifications for solid taper pins for aeronautical purposes. Specifications for solid taper pins for aeronautical purposes standard by BSI Group, 03/30/1951
BS A 55 AND 56:1951 Specifications for grub screws for aeronautical purposes standard by BSI Group, 03/30/1951
BS SP 31 AND 32:1951 Specifications for split taper pins for aeronautical purposes standard by BSI Group, 03/30/1951
BS 1702:1950 Specification for mild steel drums (heavy duty - fixed ends) standard by BSI Group, 12/30/1950
BS 959:1950 Specification for internal micro meters (including stick micro meters) standard by BSI Group, 01/18/1951
BS 442:1950 Specification for terminals for electrical apparatus for railway signalling purposes standard by BSI Group, 12/30/1950
BS 714:1950 Specification. Cartridge fuse-links for use in railway-signalling circuits standard by BSI Group, 11/30/1950
BS 581:1950 [ Withdrawn ] Specification for electrically-driven point-operating machines for railways standard by BSI Group, 12/13/1950
BS 1553-2:1950 Specification for graphical symbols for general engineering. Graphical symbols for power generating plant standard by BSI Group, 09/21/1950
BS 1553-3:1950 Graphical symbols for general engineering. Graphical symbols for compressing plant standard by BSI Group, 09/07/1950
BS 1659:1950 Specification for tractive armature direct current neutral track and line relays for railway signalling standard by BSI Group, 07/26/1950