BS G 133:1951 Specification for electro-magnetic indicators for extra low voltage aircraft systems standard by BSI Group, 09/06/1951
BS 1761:1951 Specification for single bucket excavators of the crawler-mounted friction-driven type standard by BSI Group, 09/05/1951
BS 1782:1951 Specification for couplings for suction and delivery hose (1 1/2 in. to 8 in. nominal sizes) other than fire hose couplings standard by BSI Group, 08/22/1951
BS 376-1:1951 Railway signalling symbols. Schematic symbols standard by BSI Group, 07/10/1951
BS 561:1951 Specification for alternating-current line relays double-element 3-position (for railway signalling) standard by BSI Group, 06/15/1951
BS 1745:1951 Specification for alternating-current relays for railway signalling: track relays (double-element, 2-position), line relays (single-element, 2-position) standard by BSI Group, 06/08/1951
BS 1685:1951 Specification for bevel protractors (mechanical and optical) standard by BSI Group, 05/22/1951
BS 93:1951 Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A standard by BSI Group, 05/25/1951
BS 1734:1951 Specification for micrometer heads standard by BSI Group, 04/16/1951
BS 641:1951 Dimensions of small rivets for general purposes standard by BSI Group, 03/31/1951
BS 57:1951 Specification. B.A. screws bolts and nuts standard by BSI Group, 03/31/1951
BS 1728-1:1951 Methods for the analysis of aluminium and aluminium alloys. Determination of copper standard by BSI Group, 03/31/1951